Colour reference

Green 500

#22c55e

A common success green in modern interfaces.

RGB: rgb(34 197 94)
HSL: 142°, 71%, 45%
OKLCh: 72.3% 0.192 149.6

Green 500 in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#22c55e`
RGB	`rgb(34 197 94)`
RGB legacy	`rgb(34, 197, 94)`
RGB percent	`rgb(13.33% 77.25% 36.86%)`
HSL	`hsl(142.1 70.6% 45.3%)`
HSL legacy	`hsl(142.1, 70.6%, 45.3%)`
HSV / HSB	`hsv(142.1, 82.7%, 77.3%)`
HWB	`hwb(142.1 13.3% 22.7%)`
Nearest name	`limegreen (approx.)`
CMYK	`cmyk(82.7%, 0%, 52.3%, 22.7%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(72.275% 0.19201 149.579)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(72.275% -0.16557 0.09722)`
CIE LCh	`lch(70.219% 70.122 145.777)`
CIE Lab	`lab(70.219% -57.981 39.438)`
Display P3	`color(display-p3 0.3692 0.7613 0.4136)`
Rec. 2020	`color(rec2020 0.432 0.7168 0.3683)`
srgb-linear	`color(srgb-linear 0.016 0.5583 0.1119)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.2265 0.4108 0.1733)`

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

GLSL vec3 — sRGB	`vec3(0.133, 0.773, 0.369)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.016, 0.558, 0.112)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.133, 0.773, 0.369, 1.0)`
GLSL vec4 — linear	`vec4(0.016, 0.558, 0.112, 1.0)`
GLSL ivec3	`ivec3(34, 197, 94)`
HLSL float3 — sRGB	`float3(0.133, 0.773, 0.369)`
HLSL float3 — linear	`float3(0.016, 0.558, 0.112)`
HLSL float4 — sRGB	`float4(0.133, 0.773, 0.369, 1.0)`
HLSL half4 — sRGB	`half4(0.133, 0.773, 0.369, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.133, 0.773, 0.369)`
WGSL vec4f — sRGB	`vec4f(0.133, 0.773, 0.369, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.016, 0.558, 0.112)`

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

Unity Color	`new Color(0.133f, 0.773f, 0.369f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(34, 197, 94, 255)`
Unreal FLinearColor	`FLinearColor(0.016f, 0.5583f, 0.1119f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(34, 197, 94, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.133, 0.773, 0.369, 1)`
Flutter Color	`Color(0xFF22C55E)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(34, 197, 94)`
SwiftUI Color	`Color(red: 0.133, green: 0.773, blue: 0.369)`
UIKit UIColor	`UIColor(red: 0.133, green: 0.773, blue: 0.369, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x22C55E`
0x hex (ARGB)	`0xFF22C55E`
Array 0–1	`[0.133, 0.773, 0.369]`
Array 0–255	`[34, 197, 94]`
Decimal integer	`2278750`

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
Green 500 on white	2.28:1	Fail	Lc 44	Non-text elements only
Green 500 on black	9.22:1	AAA	Lc 58	Large headings only

Green 500 text on a white background

Green 500 text on a black background

White text on Green 500

Black text on Green 500

Tonal scale

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

50#d5ffdd
100#adffbe
200#88faa2
300#66e486
400#35c865
500#00a943
600#008d2b
700#00721e
800#005b13
900#00480a
950#002b00

Tints and shades

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

Tint 1#5dd07a
Tint 2#83da95
Tint 3#a4e4b0
Tint 4#c4edca
Tint 5#e2f6e5
Shade 1#189a48
Shade 2#0f7133
Shade 3#074b1f
Shade 4#02270d
Shade 5#000902

Colours that work with Green 500

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

#e572de
#7d9dff
#ff6c59
#98b500
#00c3a8

Closest CSS names

limegreenΔEok 0.048
mediumseagreenΔEok 0.064
yellowgreenΔEok 0.098
mediumaquamarineΔEok 0.110
darkseagreenΔEok 0.116
lightseagreenΔEok 0.130