#263B51#263B51

#263B51 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.5% C 0.047 H 250.4°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#263B51
RGB	rgb(38, 59, 81)
HSL	hsl(211, 36%, 23%)
HSV	hsv(211, 53%, 32%)
CMYK	cmyk(53.1%, 27.2%, 0%, 68.2%)
CIE-LAB	lab(24.11, -1.20, -15.91)
CIE-LCH	lch(24.11, 15.96, 265.70°)
OKLab	oklab(34.51% -0.0158 -0.0444)
OKLCH	oklch(34.51% 0.047 250.4)
XYZ	xyz(3.8480, 4.1338, 8.3781)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263B51 #513C26

analogous

#265051 #263B51 #262651

triadic

#263B51 #51263B #3B5126

tetradic

#263B51 #512650 #513C26 #265126

square

#263B51 #512650 #513C26 #265126

split-complementary

#263B51 #512626 #505126

monochromatic

#0A0F15 #121D27 #263B51 #3A597B #4D78A4

Accessibility & contrast

On white

11.50

#263B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#263B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263B51

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263B51	#FFFFFF	#000000	##FFFFFF
##263B51	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323C52

Deuteranopia (green-blind)

#2D3751

Tritanopia (blue-blind)

#124043

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #263b51;
/* rgb */ color: rgb(38, 59, 81);
/* oklch */ color: oklch(34.5% 0.047 250.4);

Tailwind

colors: {
  custom: {
    50: '#637082',
    500: '#263b51',
    950: '#000000',
  },
}

SCSS

$custom: #263b51;
$custom-light: #637082;
$custom-dark: #000000;

JSON

{
  "hex": "#263b51",
  "rgb": {
    "r": 38,
    "g": 59,
    "b": 81
  },
  "hsl": {
    "h": 210.698,
    "s": 36.134,
    "l": 23.333
  },
  "oklch": {
    "l": 0.34506,
    "c": 0.04715,
    "h": 250.4
  },
  "luminance": 0.04134
}

Semantic roles & 50–950 ramp

primary

#263B51

secondary

#846A4F

accent

#955CCC

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#05070A

muted

#7A7A7C

Preview Lab

Preview with #263B51

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

Preview Lab → · Contrast checker → · Palette generator →