#25579B#25579B

#25579B is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.123 H 257.0°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#25579B
RGB	rgb(37, 87, 155)
HSL	hsl(215, 61%, 38%)
HSV	hsv(215, 76%, 61%)
CMYK	cmyk(76.1%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(37.07, 7.97, -41.92)
CIE-LCH	lch(37.07, 42.67, 280.76°)
OKLab	oklab(45.97% -0.0276 -0.1199)
OKLCH	oklch(45.97% 0.123 257)
XYZ	xyz(10.0854, 9.5751, 32.3206)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25579B #9B6925

analogous

#25929B #25579B #2E259B

triadic

#25579B #9B2557 #579B25

tetradic

#25579B #9B2592 #9B6925 #259B2E

square

#25579B #9B2592 #9B6925 #259B2E

split-complementary

#25579B #9B2E25 #929B25

monochromatic

#0D2038 #193B6A #25579B #3173CC #6194D9

Accessibility & contrast

On white

7.20

#25579B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#25579B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25579B

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25579B	#FFFFFF	#000000	##FFFFFF
##25579B	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355D9E

Deuteranopia (green-blind)

#20529A

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #25579b;
/* rgb */ color: rgb(37, 87, 155);
/* oklch */ color: oklch(46.0% 0.123 257.0);

Tailwind

colors: {
  custom: {
    50: '#7185b9',
    500: '#25579b',
    950: '#000000',
  },
}

SCSS

$custom: #25579b;
$custom-light: #7185b9;
$custom-dark: #000000;

JSON

{
  "hex": "#25579b",
  "rgb": {
    "r": 37,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 214.576,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.45969,
    "c": 0.12309,
    "h": 257
  },
  "luminance": 0.09576
}

Semantic roles & 50–950 ramp

primary

#25579B

secondary

#BF955D

accent

#A043E5

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #25579B

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

Preview Lab → · Contrast checker → · Palette generator →