#263F57#263F57

#263F57 is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.052 H 248.5°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#263F57
RGB	rgb(38, 63, 87)
HSL	hsl(209, 39%, 25%)
HSV	hsv(209, 56%, 34%)
CMYK	cmyk(56.3%, 27.6%, 0%, 65.9%)
CIE-LAB	lab(25.73, -1.75, -17.34)
CIE-LCH	lch(25.73, 17.43, 264.24°)
OKLab	oklab(35.88% -0.0191 -0.0485)
OKLCH	oklch(35.88% 0.052 248.5)
XYZ	xyz(4.2965, 4.6549, 9.6870)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F57 #573E26

analogous

#265757 #263F57 #262757

triadic

#263F57 #57263F #3F5726

tetradic

#263F57 #572657 #573E26 #275726

square

#263F57 #572657 #573E26 #275726

split-complementary

#263F57 #572627 #575726

monochromatic

#090F15 #13202C #263F57 #395E82 #4B7DAC

Accessibility & contrast

On white

10.88

#263F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#263F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F57

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F57	#FFFFFF	#000000	##FFFFFF
##263F57	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354058

Deuteranopia (green-blind)

#2F3B57

Tritanopia (blue-blind)

#0B4547

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #263f57;
/* rgb */ color: rgb(38, 63, 87);
/* oklch */ color: oklch(35.9% 0.052 248.5);

Tailwind

colors: {
  custom: {
    50: '#647386',
    500: '#263f57',
    950: '#000000',
  },
}

SCSS

$custom: #263f57;
$custom-light: #647386;
$custom-dark: #000000;

JSON

{
  "hex": "#263f57",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 87
  },
  "hsl": {
    "h": 209.388,
    "s": 39.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.35876,
    "c": 0.05215,
    "h": 248.5
  },
  "luminance": 0.04655
}

Semantic roles & 50–950 ramp

primary

#263F57

secondary

#8A6C4F

accent

#9359CF

background

#F6F7F8

surface

#EBEDEF

border

#C6C8CA

text

#06080B

muted

#7A7B7C

Preview Lab

Preview with #263F57

Body copy rendered with the generated semantic roles for this colour.

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