Colour reference

Safety Orange

#fb5607

RGB: rgb(251 86 7)
HSL: 19°, 97%, 51%
OKLCh: 67.1% 0.212 39.0

Safety Orange in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#fb5607`
RGB	`rgb(251 86 7)`
RGB legacy	`rgb(251, 86, 7)`
RGB percent	`rgb(98.43% 33.73% 2.75%)`
HSL	`hsl(19.4 96.8% 50.6%)`
HSL legacy	`hsl(19.4, 96.8%, 50.6%)`
HSV / HSB	`hsv(19.4, 97.2%, 98.4%)`
HWB	`hwb(19.4 2.7% 1.6%)`
Nearest name	`orangered (approx.)`
CMYK	`cmyk(0%, 65.7%, 97.2%, 1.6%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(67.069% 0.21249 39.036)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(67.069% 0.16505 0.13383)`
CIE LCh	`lch(60.022% 93.256 48.254)`
CIE Lab	`lab(60.022% 62.093 69.578)`
Display P3	`color(display-p3 0.9113 0.3841 0.1724)`
Rec. 2020	`color(rec2020 0.7974 0.372 0.1131)`
srgb-linear	`color(srgb-linear 0.9647 0.0931 0.0021)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.4315 0.2718 0.0318)`

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

GLSL vec3 — sRGB	`vec3(0.984, 0.337, 0.027)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.965, 0.093, 0.002)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.984, 0.337, 0.027, 1.0)`
GLSL vec4 — linear	`vec4(0.965, 0.093, 0.002, 1.0)`
GLSL ivec3	`ivec3(251, 86, 7)`
HLSL float3 — sRGB	`float3(0.984, 0.337, 0.027)`
HLSL float3 — linear	`float3(0.965, 0.093, 0.002)`
HLSL float4 — sRGB	`float4(0.984, 0.337, 0.027, 1.0)`
HLSL half4 — sRGB	`half4(0.984, 0.337, 0.027, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.984, 0.337, 0.027)`
WGSL vec4f — sRGB	`vec4f(0.984, 0.337, 0.027, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.965, 0.093, 0.002)`

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

Unity Color	`new Color(0.984f, 0.337f, 0.027f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(251, 86, 7, 255)`
Unreal FLinearColor	`FLinearColor(0.9647f, 0.0931f, 0.0021f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(251, 86, 7, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.984, 0.337, 0.027, 1)`
Flutter Color	`Color(0xFFFB5607)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(251, 86, 7)`
SwiftUI Color	`Color(red: 0.984, green: 0.337, blue: 0.027)`
UIKit UIColor	`UIColor(red: 0.984, green: 0.337, blue: 0.027, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0xFB5607`
0x hex (ARGB)	`0xFFFB5607`
Array 0–1	`[0.984, 0.337, 0.027]`
Array 0–255	`[251, 86, 7]`
Decimal integer	`16471559`

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
Safety Orange on white	3.26:1	AA Large	Lc 59	Large headings only
Safety Orange on black	6.44:1	AA	Lc 43	Non-text elements only

Safety Orange text on a white background

Safety Orange text on a black background

White text on Safety Orange

Black text on Safety 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#ff7541
500#ef4a00
600#cd2d00
700#a71f00
800#881300
900#6d0800
950#450000

Tints and shades

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

Tint 1#ff7849
Tint 2#ff9671
Tint 3#ffb195
Tint 4#ffccb9
Tint 5#ffe6dc
Shade 1#c54204
Shade 2#922e02
Shade 3#611c01
Shade 4#350b00
Shade 5#0e0100

Colours that work with Safety Orange

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

#00a8d0
#00b56b
#7f81ff
#fa4a7a
#d57e00

Closest CSS names

orangeredΔEok 0.024
tomatoΔEok 0.039
redΔEok 0.074
chocolateΔEok 0.077
coralΔEok 0.078
salmonΔEok 0.095