#263E51#263E51

#263E51 is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.045 H 243.4°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#263E51
RGB	rgb(38, 62, 81)
HSL	hsl(207, 36%, 23%)
HSV	hsv(207, 53%, 32%)
CMYK	cmyk(53.1%, 23.5%, 0%, 68.2%)
CIE-LAB	lab(25.11, -3.18, -14.37)
CIE-LCH	lch(25.11, 14.71, 257.50°)
OKLab	oklab(35.3% -0.02 -0.04)
OKLCH	oklch(35.3% 0.045 243.4)
XYZ	xyz(4.0066, 4.4511, 8.4310)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263E51 #513926

analogous

#26514E #263E51 #262851

triadic

#263E51 #51263E #3E5126

tetradic

#263E51 #4E2651 #513926 #285126

square

#263E51 #4E2651 #513926 #285126

split-complementary

#263E51 #512628 #514E26

monochromatic

#0A1015 #121E27 #263E51 #3A5E7B #4D7EA4

Accessibility & contrast

On white

11.11

#263E51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#263E51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263E51

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263E51	#FFFFFF	#000000	##FFFFFF
##263E51	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E52

Deuteranopia (green-blind)

#303A51

Tritanopia (blue-blind)

#124344

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #263e51;
/* rgb */ color: rgb(38, 62, 81);
/* oklch */ color: oklch(35.3% 0.045 243.4);

Tailwind

colors: {
  custom: {
    50: '#637382',
    500: '#263e51',
    950: '#000000',
  },
}

SCSS

$custom: #263e51;
$custom-light: #637382;
$custom-dark: #000000;

JSON

{
  "hex": "#263e51",
  "rgb": {
    "r": 38,
    "g": 62,
    "b": 81
  },
  "hsl": {
    "h": 206.512,
    "s": 36.134,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35295,
    "c": 0.04474,
    "h": 243.4
  },
  "luminance": 0.04451
}

Semantic roles & 50–950 ramp

primary

#263E51

secondary

#84664F

accent

#8D5CCC

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#05080A

muted

#7A7B7C

Preview Lab

Preview with #263E51

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

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