Colour reference

Azure Radiance

#3a86ff

RGB: rgb(58 134 255)
HSL: 217°, 100%, 61%
OKLCh: 63.7% 0.195 259.5

Azure Radiance in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#3a86ff`
RGB	`rgb(58 134 255)`
RGB legacy	`rgb(58, 134, 255)`
RGB percent	`rgb(22.75% 52.55% 100%)`
HSL	`hsl(216.9 100% 61.4%)`
HSL legacy	`hsl(216.9, 100%, 61.4%)`
HSV / HSB	`hsv(216.9, 77.3%, 100%)`
HWB	`hwb(216.9 22.7% 0%)`
Nearest name	`dodgerblue (approx.)`
CMYK	`cmyk(77.3%, 47.5%, 0%, 0%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(63.714% 0.19525 259.509)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(63.714% -0.03555 -0.19199)`
CIE LCh	`lch(56.182% 68.839 277.605)`
CIE Lab	`lab(56.182% 9.11 -68.233)`
Display P3	`color(display-p3 0.3077 0.5188 0.9679)`
Rec. 2020	`color(rec2020 0.3665 0.472 0.9581)`
srgb-linear	`color(srgb-linear 0.0423 0.2384 1)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.2832 0.2517 0.9798)`

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

GLSL vec3 — sRGB	`vec3(0.227, 0.525, 1.0)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.042, 0.238, 1.0)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.227, 0.525, 1.0, 1.0)`
GLSL vec4 — linear	`vec4(0.042, 0.238, 1.0, 1.0)`
GLSL ivec3	`ivec3(58, 134, 255)`
HLSL float3 — sRGB	`float3(0.227, 0.525, 1.0)`
HLSL float3 — linear	`float3(0.042, 0.238, 1.0)`
HLSL float4 — sRGB	`float4(0.227, 0.525, 1.0, 1.0)`
HLSL half4 — sRGB	`half4(0.227, 0.525, 1.0, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.227, 0.525, 1.0)`
WGSL vec4f — sRGB	`vec4f(0.227, 0.525, 1.0, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.042, 0.238, 1.0)`

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

Unity Color	`new Color(0.227f, 0.525f, 1.0f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(58, 134, 255, 255)`
Unreal FLinearColor	`FLinearColor(0.0423f, 0.2384f, 1.0f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(58, 134, 255, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.227, 0.525, 1, 1)`
Flutter Color	`Color(0xFF3A86FF)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(58, 134, 255)`
SwiftUI Color	`Color(red: 0.227, green: 0.525, blue: 1)`
UIKit UIColor	`UIColor(red: 0.227, green: 0.525, blue: 1, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x3A86FF`
0x hex (ARGB)	`0xFF3A86FF`
Array 0–1	`[0.227, 0.525, 1]`
Array 0–255	`[58, 134, 255]`
Decimal integer	`3835647`

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
Azure Radiance on white	3.48:1	AA Large	Lc 62	Headings and large text
Azure Radiance on black	6.03:1	AA	Lc 40	Non-text elements only

Azure Radiance text on a white background

Azure Radiance text on a black background

White text on Azure Radiance

Black text on Azure Radiance

Tonal scale

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

50#ebf8ff
100#dcefff
200#c0deff
300#9bc7ff
400#6aa8ff
500#3a86ff
600#216bdd
700#0953bd
800#003f9f
900#002f86
950#00155b

Tints and shades

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

Tint 1#5d9cff
Tint 2#7eb1ff
Tint 3#9ec5ff
Tint 4#bed9ff
Tint 5#deecff
Shade 1#2b68c8
Shade 2#1d4b94
Shade 3#103063
Shade 4#051736
Shade 5#01040f

Colours that work with Azure Radiance

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

#bb7e00
#ea4a59
#3ca515
#009ad3
#8c6ff7

Closest CSS names

dodgerblueΔEok 0.026
cornflowerblueΔEok 0.066
royalblueΔEok 0.081
mediumslateblueΔEok 0.093
steelblueΔEok 0.113
mediumpurpleΔEok 0.118