CSS named colour

Midnight Blue

#191970

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

RGB: rgb(25 25 112)
HSL: 240°, 64%, 27%
OKLCh: 28.8% 0.144 272.8

Midnight Blue in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#191970`
RGB	`rgb(25 25 112)`
RGB legacy	`rgb(25, 25, 112)`
RGB percent	`rgb(9.8% 9.8% 43.92%)`
HSL	`hsl(240 63.5% 26.9%)`
HSL legacy	`hsl(240, 63.5%, 26.9%)`
HSV / HSB	`hsv(240, 77.7%, 43.9%)`
HWB	`hwb(240 9.8% 56.1%)`
Nearest name	`midnightblue`
CMYK	`cmyk(77.7%, 77.7%, 0%, 56.1%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(28.812% 0.14363 272.765)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(28.812% 0.00693 -0.14346)`
CIE LCh	`lch(14.929% 57.139 297.016)`
CIE Lab	`lab(14.929% 25.955 -50.904)`
Display P3	`color(display-p3 0.098 0.098 0.4215)`
Rec. 2020	`color(rec2020 0.0734 0.0515 0.3633)`
srgb-linear	`color(srgb-linear 0.0097 0.0097 0.162)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.0367 0.0207 0.1554)`

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

GLSL vec3 — sRGB	`vec3(0.098, 0.098, 0.439)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.01, 0.01, 0.162)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.098, 0.098, 0.439, 1.0)`
GLSL vec4 — linear	`vec4(0.01, 0.01, 0.162, 1.0)`
GLSL ivec3	`ivec3(25, 25, 112)`
HLSL float3 — sRGB	`float3(0.098, 0.098, 0.439)`
HLSL float3 — linear	`float3(0.01, 0.01, 0.162)`
HLSL float4 — sRGB	`float4(0.098, 0.098, 0.439, 1.0)`
HLSL half4 — sRGB	`half4(0.098, 0.098, 0.439, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.098, 0.098, 0.439)`
WGSL vec4f — sRGB	`vec4f(0.098, 0.098, 0.439, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.01, 0.01, 0.162)`

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

Unity Color	`new Color(0.098f, 0.098f, 0.439f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(25, 25, 112, 255)`
Unreal FLinearColor	`FLinearColor(0.0097f, 0.0097f, 0.162f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(25, 25, 112, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.098, 0.098, 0.439, 1)`
Flutter Color	`Color(0xFF191970)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(25, 25, 112)`
SwiftUI Color	`Color(red: 0.098, green: 0.098, blue: 0.439)`
UIKit UIColor	`UIColor(red: 0.098, green: 0.098, blue: 0.439, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x191970`
0x hex (ARGB)	`0xFF191970`
Array 0–1	`[0.098, 0.098, 0.439]`
Array 0–255	`[25, 25, 112]`
Decimal integer	`1644912`

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
Midnight Blue on white	14.85:1	AAA	Lc 101	Body text at any size
Midnight Blue on black	1.41:1	Fail	Lc 0	Not usable for text

Midnight Blue text on a white background

Midnight Blue text on a black background

White text on Midnight Blue

Black text on Midnight Blue

Tonal scale

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

50#f0f7ff
100#e3ecff
200#ccdaff
300#aec1ff
400#8ca2ff
500#6f83e2
600#5769c2
700#4352a4
800#333f89
900#262f72
950#12174c

Tints and shades

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

Tint 1#354189
Tint 2#5866a2
Tint 3#7e8bba
Tint 4#a7b1d1
Tint 5#d2d7e8
Shade 1#111156
Shade 2#09093e
Shade 3#040427
Shade 4#010112
Shade 5#000002

Colours that work with Midnight Blue

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

#382900
#5d0000
#00380d
#002d57
#3a0663

Closest CSS names

midnightblueexact match
navyΔEok 0.054
darkblueΔEok 0.061
indigoΔEok 0.101
darkslateblueΔEok 0.131
mediumblueΔEok 0.158