#25537B#25537B

#25537B is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.0% C 0.084 H 247.4°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#25537B
RGB	rgb(37, 83, 123)
HSL	hsl(208, 54%, 31%)
HSV	hsv(208, 70%, 48%)
CMYK	cmyk(69.9%, 32.5%, 0%, 51.8%)
CIE-LAB	lab(34.00, -1.74, -27.27)
CIE-LCH	lch(34.00, 27.32, 266.36°)
OKLab	oklab(42.98% -0.032 -0.0771)
OKLCH	oklch(42.98% 0.084 247.4)
XYZ	xyz(7.4300, 8.0091, 19.8894)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25537B #7B4D25

analogous

#257B78 #25537B #25287B

triadic

#25537B #7B2553 #537B25

tetradic

#25537B #78257B #7B4D25 #287B25

square

#25537B #78257B #7B4D25 #287B25

split-complementary

#25537B #7B2528 #7B7825

monochromatic

#09141D #17334C #25537B #3373AA #5091CA

Accessibility & contrast

On white

8.07

#25537B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#25537B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25537B

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25537B	#FFFFFF	#000000	##FFFFFF
##25537B	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41557D

Deuteranopia (green-blind)

#354C7A

Tritanopia (blue-blind)

#005D61

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #25537b;
/* rgb */ color: rgb(37, 83, 123);
/* oklch */ color: oklch(43.0% 0.084 247.4);

Tailwind

colors: {
  custom: {
    50: '#6a83a1',
    500: '#25537b',
    950: '#000000',
  },
}

SCSS

$custom: #25537b;
$custom-light: #6a83a1;
$custom-dark: #000000;

JSON

{
  "hex": "#25537b",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 123
  },
  "hsl": {
    "h": 207.907,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.42977,
    "c": 0.08352,
    "h": 247.4
  },
  "luminance": 0.0801
}

Semantic roles & 50–950 ramp

primary

#25537B

secondary

#AD7B4F

accent

#8F4BDD

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #25537B

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

Preview Lab → · Contrast checker → · Palette generator →