#10255D#10255D

#10255D is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.104 H 264.9°. Best body text is #FFFFFF at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#10255D
RGB	rgb(16, 37, 93)
HSL	hsl(224, 71%, 21%)
HSV	hsv(224, 83%, 36%)
CMYK	cmyk(82.8%, 60.2%, 0%, 63.5%)
CIE-LAB	lab(16.62, 14.75, -35.86)
CIE-LCH	lch(16.62, 38.78, 292.35°)
OKLab	oklab(28.66% -0.0092 -0.1035)
OKLCH	oklch(28.66% 0.104 264.9)
XYZ	xyz(2.8503, 2.2233, 10.6327)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10255D #5D4810

analogous

#104C5D #10255D #22105D

triadic

#10255D #5D1025 #255D10

tetradic

#10255D #5D104C #5D4810 #105D22

square

#10255D #5D104C #5D4810 #105D22

split-complementary

#10255D #5D2210 #4C5D10

monochromatic

#040A1A #071029 #10255D #193A91 #224FC5

Accessibility & contrast

On white

14.53

#10255D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#10255D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10255D

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10255D	#FFFFFF	#000000	##FFFFFF
##10255D	1.00	14.53	1.44	14.53
#FFFFFF	14.53	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5F

Deuteranopia (green-blind)

#00265C

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #10255d;
/* rgb */ color: rgb(16, 37, 93);
/* oklch */ color: oklch(28.7% 0.104 264.9);

Tailwind

colors: {
  custom: {
    50: '#5c5f8b',
    500: '#10255d',
    950: '#000000',
  },
}

SCSS

$custom: #10255d;
$custom-light: #5c5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#10255d",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 93
  },
  "hsl": {
    "h": 223.636,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28655,
    "c": 0.10389,
    "h": 264.9
  },
  "luminance": 0.02224
}

Semantic roles & 50–950 ramp

primary

#10255D

secondary

#967B33

accent

#BD3AED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #10255D

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

Preview Lab → · Contrast checker → · Palette generator →