CSS named colour

Dark Orange

#ff8c00

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

RGB: rgb(255 140 0)
HSL: 33°, 100%, 50%
OKLCh: 75.1% 0.179 58.3

Dark Orange in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#ff8c00`
RGB	`rgb(255 140 0)`
RGB legacy	`rgb(255, 140, 0)`
RGB percent	`rgb(100% 54.9% 0%)`
HSL	`hsl(32.9 100% 50%)`
HSL legacy	`hsl(32.9, 100%, 50%)`
HSV / HSB	`hsv(32.9, 100%, 100%)`
HWB	`hwb(32.9 0% 0%)`
Nearest name	`darkorange`
CMYK	`cmyk(0%, 45.1%, 100%, 0%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(75.054% 0.17911 58.283)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(75.054% 0.09417 0.15236)`
CIE LCh	`lch(70.211% 85.863 62.398)`
CIE Lab	`lab(70.211% 39.783 76.09)`
Display P3	`color(display-p3 0.9401 0.5719 0.2093)`
Rec. 2020	`color(rec2020 0.8452 0.5499 0.1574)`
srgb-linear	`color(srgb-linear 1 0.2623 0)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.5062 0.4002 0.0506)`

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

GLSL vec3 — sRGB	`vec3(1.0, 0.549, 0.0)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(1.0, 0.262, 0.0)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(1.0, 0.549, 0.0, 1.0)`
GLSL vec4 — linear	`vec4(1.0, 0.262, 0.0, 1.0)`
GLSL ivec3	`ivec3(255, 140, 0)`
HLSL float3 — sRGB	`float3(1.0, 0.549, 0.0)`
HLSL float3 — linear	`float3(1.0, 0.262, 0.0)`
HLSL float4 — sRGB	`float4(1.0, 0.549, 0.0, 1.0)`
HLSL half4 — sRGB	`half4(1.0, 0.549, 0.0, 1.0)`
WGSL vec3f — sRGB	`vec3f(1.0, 0.549, 0.0)`
WGSL vec4f — sRGB	`vec4f(1.0, 0.549, 0.0, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(1.0, 0.262, 0.0)`

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

Unity Color	`new Color(1.0f, 0.549f, 0.0f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(255, 140, 0, 255)`
Unreal FLinearColor	`FLinearColor(1.0f, 0.2623f, 0.0f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(255, 140, 0, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(1, 0.549, 0, 1)`
Flutter Color	`Color(0xFFFF8C00)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(255, 140, 0)`
SwiftUI Color	`Color(red: 1, green: 0.549, blue: 0)`
UIKit UIColor	`UIColor(red: 1, green: 0.549, blue: 0, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xFF8C00`
0x hex (ARGB)	`0xFFFF8C00`
Array 0–1	`[1, 0.549, 0]`
Array 0–255	`[255, 140, 0]`
Decimal integer	`16747520`

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
Dark Orange on white	2.33:1	Fail	Lc 45	Large headings only
Dark Orange on black	9.00:1	AAA	Lc 57	Large headings only

Dark Orange text on a white background

Dark Orange text on a black background

White text on Dark Orange

Black text on Dark Orange

Tonal scale

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

50#fff2dd
100#ffe5c7
200#ffce9e
300#ffac5e
400#f7890d
500#d56900
600#b05400
700#904200
800#743300
900#5d2600
950#391200

Tints and shades

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

Tint 1#ffa14f
Tint 2#ffb578
Tint 3#ffc89b
Tint 4#ffdbbd
Tint 5#ffedde
Shade 1#c86d00
Shade 2#944f00
Shade 3#633300
Shade 4#361900
Shade 5#0f0400

Colours that work with Dark Orange

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

#00baff
#00ceaf
#bd92ff
#ff7c6c
#dba500

Closest CSS names

darkorangeexact match
orangeΔEok 0.057
coralΔEok 0.058
sandybrownΔEok 0.062
goldenrodΔEok 0.079
lightsalmonΔEok 0.081