CSS named colour

Cornflower Blue

#6495ed

A CSS named colour: cornflowerblue is valid anywhere a colour is expected.

RGB: rgb(100 149 237)
HSL: 219°, 79%, 66%
OKLCh: 67.5% 0.141 261.3

Cornflower Blue in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#6495ed`
RGB	`rgb(100 149 237)`
RGB legacy	`rgb(100, 149, 237)`
RGB percent	`rgb(39.22% 58.43% 92.94%)`
HSL	`hsl(218.5 79.2% 66.1%)`
HSL legacy	`hsl(218.5, 79.2%, 66.1%)`
HSV / HSB	`hsv(218.5, 57.8%, 92.9%)`
HWB	`hwb(218.5 39.2% 7.1%)`
Nearest name	`cornflowerblue`
CMYK	`cmyk(57.8%, 37.1%, 0%, 7.1%)`Naive conversion. Real print work needs an ICC profile.

Perceptual & wide gamutModern CSS colour spaces for uniform scales and P3 displays.

OKLCh	`oklch(67.462% 0.14136 261.338)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(67.462% -0.02129 -0.13974)`
CIE LCh	`lch(61.233% 50.281 273.474)`
CIE Lab	`lab(61.233% 3.047 -50.188)`
Display P3	`color(display-p3 0.4343 0.5792 0.9038)`
Rec. 2020	`color(rec2020 0.4518 0.5352 0.8877)`
srgb-linear	`color(srgb-linear 0.1274 0.3005 0.8469)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.3129 0.3032 0.8433)`

ShadersGLSL, HLSL and WGSL vectors in both encoded and linear form.

GLSL vec3 — sRGB	`vec3(0.392, 0.584, 0.929)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.127, 0.301, 0.847)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.392, 0.584, 0.929, 1.0)`
GLSL vec4 — linear	`vec4(0.127, 0.301, 0.847, 1.0)`
GLSL ivec3	`ivec3(100, 149, 237)`
HLSL float3 — sRGB	`float3(0.392, 0.584, 0.929)`
HLSL float3 — linear	`float3(0.127, 0.301, 0.847)`
HLSL float4 — sRGB	`float4(0.392, 0.584, 0.929, 1.0)`
HLSL half4 — sRGB	`half4(0.392, 0.584, 0.929, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.392, 0.584, 0.929)`
WGSL vec4f — sRGB	`vec4f(0.392, 0.584, 0.929, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.127, 0.301, 0.847)`

Engines & appsConstructors for Unity, Unreal, Godot, Flutter, SwiftUI and Android.

Unity Color	`new Color(0.392f, 0.584f, 0.929f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(100, 149, 237, 255)`
Unreal FLinearColor	`FLinearColor(0.1274f, 0.3005f, 0.8469f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(100, 149, 237, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.392, 0.584, 0.929, 1)`
Flutter Color	`Color(0xFF6495ED)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(100, 149, 237)`
SwiftUI Color	`Color(red: 0.392, green: 0.584, blue: 0.929)`
UIKit UIColor	`UIColor(red: 0.392, green: 0.584, blue: 0.929, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x6495ED`
0x hex (ARGB)	`0xFF6495ED`
Array 0–1	`[0.392, 0.584, 0.929]`
Array 0–255	`[100, 149, 237]`
Decimal integer	`6591981`

Contrast and accessibility

WCAG 2 ratios are what audits and legislation reference. APCA is shown alongside because WCAG 2 is known to misjudge mid-tone backgrounds, and it is the basis of the WCAG 3 draft.

Pairing	WCAG 2 ratio	Level	APCA	Suitable for
Cornflower Blue on white	2.97:1	Fail	Lc 56	Large headings only
Cornflower Blue on black	7.06:1	AAA	Lc 46	Large headings only

Cornflower Blue text on a white background

Cornflower Blue text on a black background

White text on Cornflower Blue

Black text on Cornflower Blue

Tonal scale

Hue held fixed while lightness walks OKLCh, ready to use as a design system ramp.

50#ecf8ff
100#ddefff
200#c2deff
300#9ec6ff
400#78a8ff
500#5989e0
600#426fc1
700#2f58a3
800#1f4488
900#133471
950#031b4b

Tints and shades

Mixed perceptually toward white and black, so the steps feel evenly spaced.

Tint 1#7da7f1
Tint 2#97b9f5
Tint 3#b0cbf9
Tint 4#cadcfb
Tint 5#e4eefd
Shade 1#4d74ba
Shade 2#375489
Shade 3#22375c
Shade 4#0f1b32
Shade 5#02050d

Colours that work with Cornflower Blue

Complementary, triadic and analogous partners, rotated in OKLCh so they keep the same apparent brightness.

#c28c00
#e06f70
#61ac56
#00a4dd
#9885e6

Closest CSS names

cornflowerblueexact match
dodgerblueΔEok 0.059
steelblueΔEok 0.102
mediumpurpleΔEok 0.104
deepskyblueΔEok 0.111
mediumslateblueΔEok 0.112