CSS named colour

White

#ffffff

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

RGB: rgb(255 255 255)
HSL: 0°, 0%, 100%
OKLCh: 100.0% 0.000 0.0

White in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#ffffff`
RGB	`rgb(255 255 255)`
RGB legacy	`rgb(255, 255, 255)`
RGB percent	`rgb(100% 100% 100%)`
HSL	`hsl(300 100% 100%)`
HSL legacy	`hsl(300, 100%, 100%)`
HSV / HSB	`hsv(300, 0%, 100%)`
HWB	`hwb(300 100% 0%)`
Nearest name	`white`
CMYK	`cmyk(0%, 0%, 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(100% 0 0)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(100% 0 0)`
CIE LCh	`lch(100% 0 139.088)`
CIE Lab	`lab(100% 0 0)`
Display P3	`color(display-p3 1 1 1)`
Rec. 2020	`color(rec2020 1 1 1)`
srgb-linear	`color(srgb-linear 1 1 1)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.9505 1 1.0891)`

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

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

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

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

Raw valuesPacked integers and plain arrays.

0x hex	`0xFFFFFF`
0x hex (ARGB)	`0xFFFFFFFF`
Array 0–1	`[1, 1, 1]`
Array 0–255	`[255, 255, 255]`
Decimal integer	`16777215`

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
White on white	1.00:1	Fail	Lc 0	Not usable for text
White on black	21.00:1	AAA	Lc 108	Body text at any size

White text on a white background

White text on a black background

White text on White

Black text on White

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

Colours that work with White

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

#ffffff
#ffffff
#ffffff
#ffffff
#ffffff

Closest CSS names

whiteexact match
snowΔEok 0.012
mintcreamΔEok 0.015
azureΔEok 0.019
floralwhiteΔEok 0.020
ivoryΔEok 0.020