Colour reference

Zinc 100

#f4f4f5

RGB: rgb(244 244 245)
HSL: 240°, 5%, 96%
OKLCh: 96.7% 0.001 286.4

Zinc 100 in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#f4f4f5`
RGB	`rgb(244 244 245)`
RGB legacy	`rgb(244, 244, 245)`
RGB percent	`rgb(95.69% 95.69% 96.08%)`
HSL	`hsl(240 4.8% 95.9%)`
HSL legacy	`hsl(240, 4.8%, 95.9%)`
HSV / HSB	`hsv(240, 0.4%, 96.1%)`
HWB	`hwb(240 95.7% 3.9%)`
Nearest name	`whitesmoke`
CMYK	`cmyk(0.4%, 0.4%, 0%, 3.9%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(96.743% 0.00133 286.375)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(96.743% 0.00037 -0.00127)`
CIE LCh	`lch(96.211% 0.5 285.279)`
CIE Lab	`lab(96.211% 0.132 -0.483)`
Display P3	`color(display-p3 0.9569 0.9569 0.9604)`
Rec. 2020	`color(rec2020 0.9517 0.9516 0.9555)`
srgb-linear	`color(srgb-linear 0.9047 0.9047 0.9131)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.8614 0.9053 0.9932)`

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

GLSL vec3 — sRGB	`vec3(0.957, 0.957, 0.961)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.905, 0.905, 0.913)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.957, 0.957, 0.961, 1.0)`
GLSL vec4 — linear	`vec4(0.905, 0.905, 0.913, 1.0)`
GLSL ivec3	`ivec3(244, 244, 245)`
HLSL float3 — sRGB	`float3(0.957, 0.957, 0.961)`
HLSL float3 — linear	`float3(0.905, 0.905, 0.913)`
HLSL float4 — sRGB	`float4(0.957, 0.957, 0.961, 1.0)`
HLSL half4 — sRGB	`half4(0.957, 0.957, 0.961, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.957, 0.957, 0.961)`
WGSL vec4f — sRGB	`vec4f(0.957, 0.957, 0.961, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.905, 0.905, 0.913)`

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

Unity Color	`new Color(0.957f, 0.957f, 0.961f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(244, 244, 245, 255)`
Unreal FLinearColor	`FLinearColor(0.9047f, 0.9047f, 0.9131f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(244, 244, 245, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.957, 0.957, 0.961, 1)`
Flutter Color	`Color(0xFFF4F4F5)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(244, 244, 245)`
SwiftUI Color	`Color(red: 0.957, green: 0.957, blue: 0.961)`
UIKit UIColor	`UIColor(red: 0.957, green: 0.957, blue: 0.961, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xF4F4F5`
0x hex (ARGB)	`0xFFF4F4F5`
Array 0–1	`[0.957, 0.957, 0.961]`
Array 0–255	`[244, 244, 245]`
Decimal integer	`16053493`

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
Zinc 100 on white	1.10:1	Fail	Lc 0	Not usable for text
Zinc 100 on black	19.11:1	AAA	Lc 101	Body text at any size

Zinc 100 text on a white background

Zinc 100 text on a black background

White text on Zinc 100

Black text on Zinc 100

Tonal scale

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

50#f7f7f8
100#ededee
200#dcdcdd
300#c5c5c6
400#a9a9aa
500#8b8b8c
600#717172
700#5b5b5b
800#474748
900#383838
950#1f1f20

Tints and shades

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

Tint 1#f6f6f7
Tint 2#f8f8f8
Tint 3#f9f9fa
Tint 4#fbfbfc
Tint 5#fdfdfd
Shade 1#bfbfc0
Shade 2#8d8d8e
Shade 3#5e5e5f
Shade 4#333334
Shade 5#0d0d0e

Colours that work with Zinc 100

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

#f4f4f3
#f5f4f3
#f3f4f4
#f4f4f5
#f4f4f5

Closest CSS names

whitesmokeΔEok 0.003
aliceblueΔEok 0.014
ghostwhiteΔEok 0.016
lavenderblushΔEok 0.017
seashellΔEok 0.017
linenΔEok 0.020