#263B4E#263B4E

#263B4E is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.043 H 246.7°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#263B4E
RGB	rgb(38, 59, 78)
HSL	hsl(209, 34%, 23%)
HSV	hsv(209, 51%, 31%)
CMYK	cmyk(51.3%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(23.97, -2.23, -14.15)
CIE-LCH	lch(23.97, 14.33, 261.03°)
OKLab	oklab(34.35% -0.017 -0.0394)
OKLCH	oklch(34.35% 0.043 246.7)
XYZ	xyz(3.7380, 4.0898, 7.7987)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B4E #4E3926

analogous

#264E4D #263B4E #26274E

triadic

#263B4E #4E263B #3B4E26

tetradic

#263B4E #4D264E #4E3926 #274E26

square

#263B4E #4D264E #4E3926 #274E26

split-complementary

#263B4E #4E2627 #4E4D26

monochromatic

#0A1015 #121C25 #263B4E #3A5A77 #4E79A0

Accessibility & contrast

On white

11.55

#263B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#263B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B4E

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B4E	#FFFFFF	#000000	##FFFFFF
##263B4E	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4F

Deuteranopia (green-blind)

#2E374E

Tritanopia (blue-blind)

#153F41

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #263b4e;
/* rgb */ color: rgb(38, 59, 78);
/* oklch */ color: oklch(34.3% 0.043 246.7);

Tailwind

colors: {
  custom: {
    50: '#63707f',
    500: '#263b4e',
    950: '#000000',
  },
}

SCSS

$custom: #263b4e;
$custom-light: #63707f;
$custom-dark: #000000;

JSON

{
  "hex": "#263b4e",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 208.5,
    "s": 34.483,
    "l": 22.745
  },
  "oklch": {
    "l": 0.34346,
    "c": 0.04289,
    "h": 246.7
  },
  "luminance": 0.0409
}

Semantic roles & 50–950 ramp

primary

#263B4E

secondary

#81674F

accent

#915DCB

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#05070A

muted

#7A7A7C

Preview Lab

Preview with #263B4E

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

Preview Lab → · Contrast checker → · Palette generator →