#25428C#25428C

#25428C is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.128 H 265.0°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#25428C
RGB	rgb(37, 66, 140)
HSL	hsl(223, 58%, 35%)
HSV	hsv(223, 74%, 55%)
CMYK	cmyk(73.6%, 52.9%, 0%, 45.1%)
CIE-LAB	lab(29.87, 16.21, -44.37)
CIE-LCH	lch(29.87, 47.24, 290.07°)
OKLab	oklab(40.12% -0.0111 -0.1276)
OKLCH	oklch(40.12% 0.128 265)
XYZ	xyz(7.4431, 6.1824, 25.6069)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25428C #8C6F25

analogous

#25768C #25428C #3C258C

triadic

#25428C #8C2542 #428C25

tetradic

#25428C #8C2576 #8C6F25 #258C3C

square

#25428C #8C2576 #8C6F25 #258C3C

split-complementary

#25428C #8C3C25 #768C25

monochromatic

#0B142B #182B5C #25428C #3259BC #587BD3

Accessibility & contrast

On white

9.39

#25428C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#25428C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25428C

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25428C	#FFFFFF	#000000	##FFFFFF
##25428C	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134B8F

Deuteranopia (green-blind)

#00428B

Tritanopia (blue-blind)

#005460

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #25428c;
/* rgb */ color: rgb(37, 66, 140);
/* oklch */ color: oklch(40.1% 0.128 265.0);

Tailwind

colors: {
  custom: {
    50: '#6e75ae',
    500: '#25428c',
    950: '#000000',
  },
}

SCSS

$custom: #25428c;
$custom-light: #6e75ae;
$custom-dark: #000000;

JSON

{
  "hex": "#25428c",
  "rgb": {
    "r": 37,
    "g": 66,
    "b": 140
  },
  "hsl": {
    "h": 223.107,
    "s": 58.192,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40117,
    "c": 0.12805,
    "h": 265
  },
  "luminance": 0.06183
}

Semantic roles & 50–950 ramp

primary

#25428C

secondary

#B89C55

accent

#B646E1

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #25428C

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

Preview Lab → · Contrast checker → · Palette generator →