CSS named colour

Light Yellow

#ffffe0

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

RGB: rgb(255 255 224)
HSL: 60°, 100%, 94%
OKLCh: 99.2% 0.040 107.1

Light Yellow in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#ffffe0`
RGB	`rgb(255 255 224)`
RGB legacy	`rgb(255, 255, 224)`
RGB percent	`rgb(100% 100% 87.84%)`
HSL	`hsl(60 100% 93.9%)`
HSL legacy	`hsl(60, 100%, 93.9%)`
HSV / HSB	`hsv(60, 12.2%, 100%)`
HWB	`hwb(60 87.8% 0%)`
Nearest name	`lightyellow`
CMYK	`cmyk(0%, 0%, 12.2%, 0%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(99.201% 0.04024 107.111)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(99.201% -0.01184 0.03846)`
CIE LCh	`lch(99.4% 15.365 104.286)`
CIE Lab	`lab(99.4% -3.791 14.89)`
Display P3	`color(display-p3 1 1 0.8902)`
Rec. 2020	`color(rec2020 0.9945 0.9986 0.8792)`
srgb-linear	`color(srgb-linear 1 1 0.7454)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.9045 0.9816 0.8471)`

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

GLSL vec3 — sRGB	`vec3(1.0, 1.0, 0.878)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(1.0, 1.0, 0.745)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(1.0, 1.0, 0.878, 1.0)`
GLSL vec4 — linear	`vec4(1.0, 1.0, 0.745, 1.0)`
GLSL ivec3	`ivec3(255, 255, 224)`
HLSL float3 — sRGB	`float3(1.0, 1.0, 0.878)`
HLSL float3 — linear	`float3(1.0, 1.0, 0.745)`
HLSL float4 — sRGB	`float4(1.0, 1.0, 0.878, 1.0)`
HLSL half4 — sRGB	`half4(1.0, 1.0, 0.878, 1.0)`
WGSL vec3f — sRGB	`vec3f(1.0, 1.0, 0.878)`
WGSL vec4f — sRGB	`vec4f(1.0, 1.0, 0.878, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(1.0, 1.0, 0.745)`

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

Unity Color	`new Color(1.0f, 1.0f, 0.878f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(255, 255, 224, 255)`
Unreal FLinearColor	`FLinearColor(1.0f, 1.0f, 0.7454f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(255, 255, 224, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(1, 1, 0.878, 1)`
Flutter Color	`Color(0xFFFFFFE0)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(255, 255, 224)`
SwiftUI Color	`Color(red: 1, green: 1, blue: 0.878)`
UIKit UIColor	`UIColor(red: 1, green: 1, blue: 0.878, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xFFFFE0`
0x hex (ARGB)	`0xFFFFFFE0`
Array 0–1	`[1, 1, 0.878]`
Array 0–255	`[255, 255, 224]`
Decimal integer	`16777184`

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
Light Yellow on white	1.02:1	Fail	Lc 0	Not usable for text
Light Yellow on black	20.63:1	AAA	Lc 107	Body text at any size

Light Yellow text on a white background

Light Yellow text on a black background

White text on Light Yellow

Black text on Light Yellow

Tonal scale

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

50#f9f9e2
100#efefd8
200#dedec5
300#c8c8ad
400#acab8f
500#8e8d71
600#747359
700#5d5d44
800#4a4933
900#3a3926
950#212011

Tints and shades

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

Tint 1#ffffe5
Tint 2#ffffeb
Tint 3#fffff0
Tint 4#fffff5
Tint 5#fffffa
Shade 1#c8c8af
Shade 2#949481
Shade 3#636356
Shade 4#36362e
Shade 5#0f0f0b

Colours that work with Light Yellow

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

#fbfaff
#e6ffff
#fff5ff
#fffadf
#f0ffe9

Closest CSS names

lightyellowexact match
cornsilkΔEok 0.017
lightgoldenrodyellowΔEok 0.021
ivoryΔEok 0.021
lemonchiffonΔEok 0.023
honeydewΔEok 0.027