CSS named colour

Dark Gray

#a9a9a9

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

RGB: rgb(169 169 169)
HSL: 0°, 0%, 66%
OKLCh: 73.5% 0.000 0.0

Dark Gray in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#a9a9a9`
RGB	`rgb(169 169 169)`
RGB legacy	`rgb(169, 169, 169)`
RGB percent	`rgb(66.27% 66.27% 66.27%)`
HSL	`hsl(240 0% 66.3%)`
HSL legacy	`hsl(240, 0%, 66.3%)`
HSV / HSB	`hsv(240, 0%, 66.3%)`
HWB	`hwb(240 66.3% 33.7%)`
Nearest name	`darkgray`
CMYK	`cmyk(0%, 0%, 0%, 33.7%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(73.481% 0 0)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(73.481% 0 0)`
CIE LCh	`lch(69.238% 0 139.088)`
CIE Lab	`lab(69.238% 0 0)`
Display P3	`color(display-p3 0.6627 0.6627 0.6627)`
Rec. 2020	`color(rec2020 0.6259 0.6259 0.6259)`
srgb-linear	`color(srgb-linear 0.3968 0.3968 0.3968)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.3771 0.3968 0.4321)`

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

GLSL vec3 — sRGB	`vec3(0.663)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.397)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.663, 0.663, 0.663, 1.0)`
GLSL vec4 — linear	`vec4(0.397, 0.397, 0.397, 1.0)`
GLSL ivec3	`ivec3(169, 169, 169)`
HLSL float3 — sRGB	`float3(0.663)`
HLSL float3 — linear	`float3(0.397)`
HLSL float4 — sRGB	`float4(0.663, 0.663, 0.663, 1.0)`
HLSL half4 — sRGB	`half4(0.663, 0.663, 0.663, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.663)`
WGSL vec4f — sRGB	`vec4f(0.663, 0.663, 0.663, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.397, 0.397, 0.397)`

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

Unity Color	`new Color(0.663f, 0.663f, 0.663f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(169, 169, 169, 255)`
Unreal FLinearColor	`FLinearColor(0.3968f, 0.3968f, 0.3968f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(169, 169, 169, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.663, 0.663, 0.663, 1)`
Flutter Color	`Color(0xFFA9A9A9)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(169, 169, 169)`
SwiftUI Color	`Color(red: 0.663, green: 0.663, blue: 0.663)`
UIKit UIColor	`UIColor(red: 0.663, green: 0.663, blue: 0.663, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xA9A9A9`
0x hex (ARGB)	`0xFFA9A9A9`
Array 0–1	`[0.663, 0.663, 0.663]`
Array 0–255	`[169, 169, 169]`
Decimal integer	`11119017`

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
Dark Gray on white	2.35:1	Fail	Lc 46	Large headings only
Dark Gray on black	8.94:1	AAA	Lc 56	Large headings only

Dark Gray text on a white background

Dark Gray text on a black background

White text on Dark Gray

Black text on Dark Gray

Tonal scale

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

50#f7f7f7
100#ededed
200#dcdcdc
300#c5c5c5
400#a9a9a9
500#8b8b8b
600#717171
700#5b5b5b
800#484848
900#383838
950#1f1f1f

Tints and shades

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

Tint 1#b7b7b7
Tint 2#c5c5c5
Tint 3#d3d3d3
Tint 4#e2e2e2
Tint 5#f0f0f0
Shade 1#848484
Shade 2#606060
Shade 3#3f3f3f
Shade 4#202020
Shade 5#060606

Colours that work with Dark Gray

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

#a9a9a9
#a9a9a9
#a9a9a9
#a9a9a9
#a9a9a9

Closest CSS names

darkgrayexact match
rosybrownΔEok 0.069
silverΔEok 0.073
darkseagreenΔEok 0.081
tanΔEok 0.082
lightsteelblueΔEok 0.090