#253B4E#253B4E

#253B4E is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.044 H 245.6°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#253B4E
RGB	rgb(37, 59, 78)
HSL	hsl(208, 36%, 23%)
HSV	hsv(208, 53%, 31%)
CMYK	cmyk(52.6%, 24.4%, 0%, 69.4%)
CIE-LAB	lab(23.90, -2.52, -14.25)
CIE-LCH	lch(23.90, 14.47, 259.96°)
OKLab	oklab(34.28% -0.018 -0.0397)
OKLCH	oklch(34.28% 0.044 245.6)
XYZ	xyz(3.7016, 4.0710, 7.7970)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B4E #4E3825

analogous

#254E4C #253B4E #25264E

triadic

#253B4E #4E253B #3B4E25

tetradic

#253B4E #4C254E #4E3825 #264E25

square

#253B4E #4C254E #4E3825 #264E25

split-complementary

#253B4E #4E2526 #4E4C25

monochromatic

#0A1015 #111C24 #253B4E #395A78 #4C7AA1

Accessibility & contrast

On white

11.58

#253B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#253B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B4E

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B4E	#FFFFFF	#000000	##FFFFFF
##253B4E	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4F

Deuteranopia (green-blind)

#2E374E

Tritanopia (blue-blind)

#124041

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #253b4e;
/* rgb */ color: rgb(37, 59, 78);
/* oklch */ color: oklch(34.3% 0.044 245.6);

Tailwind

colors: {
  custom: {
    50: '#62707f',
    500: '#253b4e',
    950: '#000000',
  },
}

SCSS

$custom: #253b4e;
$custom-light: #62707f;
$custom-dark: #000000;

JSON

{
  "hex": "#253b4e",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 78
  },
  "hsl": {
    "h": 207.805,
    "s": 35.652,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34282,
    "c": 0.04359,
    "h": 245.6
  },
  "luminance": 0.04071
}

Semantic roles & 50–950 ramp

primary

#253B4E

secondary

#81664E

accent

#905CCC

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #253B4E

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

Preview Lab → · Contrast checker → · Palette generator →