CSS named colour

Brown

#a52a2a

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

RGB: rgb(165 42 42)
HSL: 0°, 59%, 41%
OKLCh: 48.1% 0.160 25.6

Brown in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#a52a2a`
RGB	`rgb(165 42 42)`
RGB legacy	`rgb(165, 42, 42)`
RGB percent	`rgb(64.71% 16.47% 16.47%)`
HSL	`hsl(0 59.4% 40.6%)`
HSL legacy	`hsl(0, 59.4%, 40.6%)`
HSV / HSB	`hsv(0, 74.5%, 64.7%)`
HWB	`hwb(0 16.5% 35.3%)`
Nearest name	`brown`
CMYK	`cmyk(0%, 74.5%, 74.5%, 35.3%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(48.061% 0.15966 25.562)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(48.061% 0.14403 0.06889)`
CIE LCh	`lch(38.149% 59.598 32.287)`
CIE Lab	`lab(38.149% 50.384 31.835)`
Display P3	`color(display-p3 0.5957 0.2056 0.187)`
Rec. 2020	`color(rec2020 0.4841 0.1799 0.124)`
srgb-linear	`color(srgb-linear 0.3763 0.0232 0.0232)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.1676 0.0982 0.032)`

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

GLSL vec3 — sRGB	`vec3(0.647, 0.165, 0.165)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.376, 0.023, 0.023)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.647, 0.165, 0.165, 1.0)`
GLSL vec4 — linear	`vec4(0.376, 0.023, 0.023, 1.0)`
GLSL ivec3	`ivec3(165, 42, 42)`
HLSL float3 — sRGB	`float3(0.647, 0.165, 0.165)`
HLSL float3 — linear	`float3(0.376, 0.023, 0.023)`
HLSL float4 — sRGB	`float4(0.647, 0.165, 0.165, 1.0)`
HLSL half4 — sRGB	`half4(0.647, 0.165, 0.165, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.647, 0.165, 0.165)`
WGSL vec4f — sRGB	`vec4f(0.647, 0.165, 0.165, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.376, 0.023, 0.023)`

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

Unity Color	`new Color(0.647f, 0.165f, 0.165f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(165, 42, 42, 255)`
Unreal FLinearColor	`FLinearColor(0.3763f, 0.0232f, 0.0232f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(165, 42, 42, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.647, 0.165, 0.165, 1)`
Flutter Color	`Color(0xFFA52A2A)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(165, 42, 42)`
SwiftUI Color	`Color(red: 0.647, green: 0.165, blue: 0.165)`
UIKit UIColor	`UIColor(red: 0.647, green: 0.165, blue: 0.165, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xA52A2A`
0x hex (ARGB)	`0xFFA52A2A`
Array 0–1	`[0.647, 0.165, 0.165]`
Array 0–255	`[165, 42, 42]`
Decimal integer	`10824234`

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
Brown on white	7.08:1	AAA	Lc 83	Body text, 18px and up
Brown on black	2.96:1	Fail	Lc 19	Not usable for text

Brown text on a white background

Brown text on a black background

White text on Brown

Black text on Brown

Tonal scale

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

50#fff0ec
100#ffe2dd
200#ffc9c2
300#ffa69d
400#fb7e76
500#db5d57
600#bb443f
700#9c2e2c
800#821c1d
900#6b0c11
950#450001

Tints and shades

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

Tint 1#b8524c
Tint 2#c9756e
Tint 3#d99891
Tint 4#e7bab5
Tint 5#f4dcd9
Shade 1#811f1f
Shade 2#5e1414
Shade 3#3d0a0a
Shade 4#1f0303
Shade 5#060000

Colours that work with Brown

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

#006d79
#007316
#3255b6
#9e2961
#974200

Closest CSS names

brownexact match
firebrickΔEok 0.026
saddlebrownΔEok 0.076
siennaΔEok 0.078
darkredΔEok 0.082
maroonΔEok 0.105