CSS named colour

Black

#000000

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

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

Black in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#000000`
RGB	`rgb(0 0 0)`
RGB legacy	`rgb(0, 0, 0)`
RGB percent	`rgb(0% 0% 0%)`
HSL	`hsl(0 0% 0%)`
HSL legacy	`hsl(0, 0%, 0%)`
HSV / HSB	`hsv(0, 0%, 0%)`
HWB	`hwb(0 0% 100%)`
Nearest name	`black`
CMYK	`cmyk(0%, 0%, 0%, 100%)`Naive conversion. Real print work needs an ICC profile.

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

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

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

GLSL vec3 — sRGB	`vec3(0.0)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.0)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.0, 0.0, 0.0, 1.0)`
GLSL vec4 — linear	`vec4(0.0, 0.0, 0.0, 1.0)`
GLSL ivec3	`ivec3(0, 0, 0)`
HLSL float3 — sRGB	`float3(0.0)`
HLSL float3 — linear	`float3(0.0)`
HLSL float4 — sRGB	`float4(0.0, 0.0, 0.0, 1.0)`
HLSL half4 — sRGB	`half4(0.0, 0.0, 0.0, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.0)`
WGSL vec4f — sRGB	`vec4f(0.0, 0.0, 0.0, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.0, 0.0, 0.0)`

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

Unity Color	`new Color(0.0f, 0.0f, 0.0f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(0, 0, 0, 255)`
Unreal FLinearColor	`FLinearColor(0.0f, 0.0f, 0.0f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(0, 0, 0, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0, 0, 0, 1)`
Flutter Color	`Color(0xFF000000)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(0, 0, 0)`
SwiftUI Color	`Color(red: 0, green: 0, blue: 0)`
UIKit UIColor	`UIColor(red: 0, green: 0, blue: 0, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x000000`
0x hex (ARGB)	`0xFF000000`
Array 0–1	`[0, 0, 0]`
Array 0–255	`[0, 0, 0]`
Decimal integer	`0`

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
Black on white	21.00:1	AAA	Lc 106	Body text at any size
Black on black	1.00:1	Fail	Lc 0	Not usable for text

Black text on a white background

Black text on a black background

White text on Black

Black text on Black

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#0f0f0f
Tint 2#363636
Tint 3#636363
Tint 4#949494
Tint 5#c8c8c8
Shade 1#000000
Shade 2#000000
Shade 3#000000
Shade 4#000000
Shade 5#000000

Colours that work with Black

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

#000000
#000000
#000000
#000000
#000000

Closest CSS names

blackexact match
midnightblueΔEok 0.322
navyΔEok 0.330
darkblueΔEok 0.350
indigoΔEok 0.383
darkslategrayΔEok 0.405