#25639B#25639B

#25639B is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.8% C 0.110 H 249.3°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#25639B
RGB	rgb(37, 99, 155)
HSL	hsl(208, 61%, 38%)
HSV	hsv(208, 76%, 61%)
CMYK	cmyk(76.1%, 36.1%, 0%, 39.2%)
CIE-LAB	lab(40.71, 0.26, -36.13)
CIE-LCH	lch(40.71, 36.13, 270.41°)
OKLab	oklab(48.81% -0.0389 -0.1028)
OKLCH	oklch(48.81% 0.11 249.3)
XYZ	xyz(11.1389, 11.6823, 32.6718)
Luminance	0.1168 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25639B #9B5D25

analogous

#259B98 #25639B #25289B

triadic

#25639B #9B2563 #639B25

tetradic

#25639B #98259B #9B5D25 #289B25

square

#25639B #98259B #9B5D25 #289B25

split-complementary

#25639B #9B2528 #9B9825

monochromatic

#0D2438 #19436A #25639B #3183CC #61A0D9

Accessibility & contrast

On white

6.29

#25639B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#25639B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #25639B

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25639B	#FFFFFF	#000000	##FFFFFF
##25639B	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49669D

Deuteranopia (green-blind)

#385B9A

Tritanopia (blue-blind)

#007077

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #25639b;
/* rgb */ color: rgb(37, 99, 155);
/* oklch */ color: oklch(48.8% 0.110 249.3);

Tailwind

colors: {
  custom: {
    50: '#708fb9',
    500: '#25639b',
    950: '#000000',
  },
}

SCSS

$custom: #25639b;
$custom-light: #708fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#25639b",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 155
  },
  "hsl": {
    "h": 208.475,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48807,
    "c": 0.10988,
    "h": 249.3
  },
  "luminance": 0.11684
}

Semantic roles & 50–950 ramp

primary

#25639B

secondary

#BF8B5D

accent

#9043E5

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C11

muted

#7B7D80

Preview Lab

Preview with #25639B

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

Preview Lab → · Contrast checker → · Palette generator →