CSS named colour

Orange Red

#ff4500

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

RGB: rgb(255 69 0)
HSL: 16°, 100%, 50%
OKLCh: 66.0% 0.229 35.4

Orange Red in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#ff4500`
RGB	`rgb(255 69 0)`
RGB legacy	`rgb(255, 69, 0)`
RGB percent	`rgb(100% 27.06% 0%)`
HSL	`hsl(16.2 100% 50%)`
HSL legacy	`hsl(16.2, 100%, 50%)`
HSV / HSB	`hsv(16.2, 100%, 100%)`
HWB	`hwb(16.2 0% 0%)`
Nearest name	`orangered`
CMYK	`cmyk(0%, 72.9%, 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(66.02% 0.22936 35.403)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(66.02% 0.18695 0.13287)`
CIE LCh	`lch(58.523% 99.05 45.706)`
CIE Lab	`lab(58.523% 69.17 70.897)`
Display P3	`color(display-p3 0.9227 0.3331 0.1576)`
Rec. 2020	`color(rec2020 0.8044 0.3301 0.0965)`
srgb-linear	`color(srgb-linear 1 0.0595 0)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.4337 0.2552 0.0264)`

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

GLSL vec3 — sRGB	`vec3(1.0, 0.271, 0.0)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(1.0, 0.06, 0.0)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(1.0, 0.271, 0.0, 1.0)`
GLSL vec4 — linear	`vec4(1.0, 0.06, 0.0, 1.0)`
GLSL ivec3	`ivec3(255, 69, 0)`
HLSL float3 — sRGB	`float3(1.0, 0.271, 0.0)`
HLSL float3 — linear	`float3(1.0, 0.06, 0.0)`
HLSL float4 — sRGB	`float4(1.0, 0.271, 0.0, 1.0)`
HLSL half4 — sRGB	`half4(1.0, 0.271, 0.0, 1.0)`
WGSL vec3f — sRGB	`vec3f(1.0, 0.271, 0.0)`
WGSL vec4f — sRGB	`vec4f(1.0, 0.271, 0.0, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(1.0, 0.06, 0.0)`

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

Unity Color	`new Color(1.0f, 0.271f, 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, 69, 0, 255)`
Unreal FLinearColor	`FLinearColor(1.0f, 0.0595f, 0.0f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(255, 69, 0, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(1, 0.271, 0, 1)`
Flutter Color	`Color(0xFFFF4500)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(255, 69, 0)`
SwiftUI Color	`Color(red: 1, green: 0.271, blue: 0)`
UIKit UIColor	`UIColor(red: 1, green: 0.271, blue: 0, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xFF4500`
0x hex (ARGB)	`0xFFFF4500`
Array 0–1	`[1, 0.271, 0]`
Array 0–255	`[255, 69, 0]`
Decimal integer	`16729344`

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
Orange Red on white	3.44:1	AA Large	Lc 60	Headings and large text
Orange Red on black	6.10:1	AA	Lc 41	Non-text elements only

Orange Red text on a white background

Orange Red text on a black background

White text on Orange Red

Black text on Orange Red

Tonal scale

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

50#fff0e8
100#ffe3d7
200#ffcab9
300#ffa88e
400#ff744e
500#f63c00
600#d41500
700#ad0500
800#8d0000
900#720000
950#470000

Tints and shades

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

Tint 1#ff6d47
Tint 2#ff8e6f
Tint 3#ffac94
Tint 4#ffc8b8
Tint 5#ffe4db
Shade 1#c83400
Shade 2#942400
Shade 3#631500
Shade 4#360700
Shade 5#0f0100

Colours that work with Orange Red

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

#00a6c7
#00b25c
#737fff
#fb3a7e
#d67800

Closest CSS names

orangeredexact match
redΔEok 0.050
tomatoΔEok 0.051
chocolateΔEok 0.093
coralΔEok 0.098
indianredΔEok 0.105