Colour reference

Ember Orange

#ff6b35

RGB: rgb(255 107 53)
HSL: 16°, 100%, 60%
OKLCh: 70.5% 0.193 39.2

Ember Orange in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#ff6b35`
RGB	`rgb(255 107 53)`
RGB legacy	`rgb(255, 107, 53)`
RGB percent	`rgb(100% 41.96% 20.78%)`
HSL	`hsl(16 100% 60.4%)`
HSL legacy	`hsl(16, 100%, 60.4%)`
HSV / HSB	`hsv(16, 79.2%, 100%)`
HWB	`hwb(16 20.8% 0%)`
Nearest name	`tomato (approx.)`
CMYK	`cmyk(0%, 58%, 79.2%, 0%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(70.452% 0.19259 39.231)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(70.452% 0.14918 0.12181)`
CIE LCh	`lch(64.165% 80.175 46.138)`
CIE Lab	`lab(64.165% 55.556 57.807)`
Display P3	`color(display-p3 0.9302 0.4557 0.272)`
Rec. 2020	`color(rec2020 0.8232 0.4391 0.2135)`
srgb-linear	`color(srgb-linear 1 0.147 0.0356)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.4714 0.3204 0.0707)`

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

GLSL vec3 — sRGB	`vec3(1.0, 0.42, 0.208)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(1.0, 0.147, 0.036)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(1.0, 0.42, 0.208, 1.0)`
GLSL vec4 — linear	`vec4(1.0, 0.147, 0.036, 1.0)`
GLSL ivec3	`ivec3(255, 107, 53)`
HLSL float3 — sRGB	`float3(1.0, 0.42, 0.208)`
HLSL float3 — linear	`float3(1.0, 0.147, 0.036)`
HLSL float4 — sRGB	`float4(1.0, 0.42, 0.208, 1.0)`
HLSL half4 — sRGB	`half4(1.0, 0.42, 0.208, 1.0)`
WGSL vec3f — sRGB	`vec3f(1.0, 0.42, 0.208)`
WGSL vec4f — sRGB	`vec4f(1.0, 0.42, 0.208, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(1.0, 0.147, 0.036)`

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

Unity Color	`new Color(1.0f, 0.42f, 0.208f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(255, 107, 53, 255)`
Unreal FLinearColor	`FLinearColor(1.0f, 0.147f, 0.0356f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(255, 107, 53, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(1, 0.42, 0.208, 1)`
Flutter Color	`Color(0xFFFF6B35)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(255, 107, 53)`
SwiftUI Color	`Color(red: 1, green: 0.42, blue: 0.208)`
UIKit UIColor	`UIColor(red: 1, green: 0.42, blue: 0.208, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xFF6B35`
0x hex (ARGB)	`0xFFFF6B35`
Array 0–1	`[1, 0.42, 0.208]`
Array 0–255	`[255, 107, 53]`
Decimal integer	`16739125`

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
Ember Orange on white	2.84:1	Fail	Lc 54	Large headings only
Ember Orange on black	7.41:1	AAA	Lc 48	Large headings only

Ember Orange text on a white background

Ember Orange text on a black background

White text on Ember Orange

Black text on Ember Orange

Tonal scale

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

50#fff0e7
100#ffe3d5
200#ffcbb5
300#ffa988
400#ff7845
500#e75418
600#c63900
700#a62200
800#871400
900#6d0900
950#450000

Tints and shades

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

Tint 1#ff875d
Tint 2#ffa17f
Tint 3#ffb9a0
Tint 4#ffd1bf
Tint 5#ffe8df
Shade 1#c85227
Shade 2#943b1a
Shade 3#63250e
Shade 4#361104
Shade 5#0f0201

Colours that work with Ember Orange

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

#00b4de
#00c174
#8b8fff
#fe6186
#e38700

Closest CSS names

tomatoΔEok 0.025
coralΔEok 0.039
orangeredΔEok 0.059
salmonΔEok 0.061
lightcoralΔEok 0.078
darkorangeΔEok 0.078