Colour reference

Charcoal Teal

#264653

RGB: rgb(38 70 83)
HSL: 197°, 37%, 24%
OKLCh: 37.5% 0.044 226.2

Charcoal Teal in every format

Web & CSSThe everyday formats for stylesheets and design tools.

Hex	`#264653`
RGB	`rgb(38 70 83)`
RGB legacy	`rgb(38, 70, 83)`
RGB percent	`rgb(14.9% 27.45% 32.55%)`
HSL	`hsl(197.3 37.2% 23.7%)`
HSL legacy	`hsl(197.3, 37.2%, 23.7%)`
HSV / HSB	`hsv(197.3, 54.2%, 32.5%)`
HWB	`hwb(197.3 14.9% 67.5%)`
Nearest name	`darkslategray (approx.)`
CMYK	`cmyk(54.2%, 15.7%, 0%, 67.5%)`Naive conversion. Real print work needs an ICC profile.

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

OKLCh	`oklch(37.528% 0.04379 226.202)`Modern CSS colour space for even palettes — better than HSL when building scales.
OKLab	`oklab(37.528% -0.03031 -0.03161)`
CIE LCh	`lch(27.699% 14.827 232.011)`
CIE Lab	`lab(27.699% -9.126 -11.686)`
Display P3	`color(display-p3 0.1786 0.2714 0.32)`
Rec. 2020	`color(rec2020 0.1472 0.2075 0.2597)`
srgb-linear	`color(srgb-linear 0.0194 0.0612 0.0865)`Light-linear sRGB — the same numbers a shader wants for maths.
CIE XYZ (D65)	`color(xyz-d65 0.0455 0.0542 0.0899)`

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

GLSL vec3 — sRGB	`vec3(0.149, 0.275, 0.325)`Encoded values. Use when writing straight to the framebuffer.
GLSL vec3 — linear	`vec3(0.019, 0.061, 0.087)`Light-linear values. Use for lighting, blending and mixing.
GLSL vec4 — sRGB	`vec4(0.149, 0.275, 0.325, 1.0)`
GLSL vec4 — linear	`vec4(0.019, 0.061, 0.087, 1.0)`
GLSL ivec3	`ivec3(38, 70, 83)`
HLSL float3 — sRGB	`float3(0.149, 0.275, 0.325)`
HLSL float3 — linear	`float3(0.019, 0.061, 0.087)`
HLSL float4 — sRGB	`float4(0.149, 0.275, 0.325, 1.0)`
HLSL half4 — sRGB	`half4(0.149, 0.275, 0.325, 1.0)`
WGSL vec3f — sRGB	`vec3f(0.149, 0.275, 0.325)`
WGSL vec4f — sRGB	`vec4f(0.149, 0.275, 0.325, 1.0)`
WGSL vec3<f32> — linear	`vec3<f32>(0.019, 0.061, 0.087)`

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

Unity Color	`new Color(0.149f, 0.275f, 0.325f, 1.0f)`Color for everyday scripting (0–1). Color32 when you need whole numbers from 0 to 255.
Unity Color32	`new Color32(38, 70, 83, 255)`
Unreal FLinearColor	`FLinearColor(0.0194f, 0.0612f, 0.0865f, 1.0f)`FLinearColor for materials and lighting. FColor when you need whole numbers from 0 to 255.
Unreal FColor	`FColor(38, 70, 83, 255)`Whole numbers from 0 to 255 — use when an API asks for FColor, not FLinearColor.
Godot Color	`Color(0.149, 0.275, 0.325, 1)`
Flutter Color	`Color(0xFF264653)`Packed ARGB, so alpha comes first.
Android Color	`Color.rgb(38, 70, 83)`
SwiftUI Color	`Color(red: 0.149, green: 0.275, blue: 0.325)`
UIKit UIColor	`UIColor(red: 0.149, green: 0.275, blue: 0.325, alpha: 1)`

Raw valuesPacked integers and plain arrays.

0x hex	`0x264653`
0x hex (ARGB)	`0xFF264653`
Array 0–1	`[0.149, 0.275, 0.325]`
Array 0–255	`[38, 70, 83]`
Decimal integer	`2508371`

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
Charcoal Teal on white	10.08:1	AAA	Lc 93	Body text at any size
Charcoal Teal on black	2.08:1	Fail	Lc 9	Not usable for text

Charcoal Teal text on a white background

Charcoal Teal text on a black background

White text on Charcoal Teal

Black text on Charcoal Teal

Tonal scale

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

50#e1fdff
100#d7f3ff
200#c4e2ef
300#acccda
400#8eafbe
500#6f91a0
600#577785
700#42606c
800#314c57
900#243c46
950#0f222a

Tints and shades

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

Tint 1#47626d
Tint 2#6a7f89
Tint 3#8d9ea5
Tint 4#b2bdc2
Tint 5#d8dee0
Shade 1#1b353f
Shade 2#11252c
Shade 3#08151b
Shade 4#02070b
Shade 5#000101

Colours that work with Charcoal Teal

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

#553a2d
#523846
#444327
#224849
#324258

Closest CSS names

darkslategrayΔEok 0.035
darkslateblueΔEok 0.116
midnightblueΔEok 0.147
dimgrayΔEok 0.152
darkolivegreenΔEok 0.161
darkgreenΔEok 0.162