#10255E#10255E

#10255E is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.105 H 265.0°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#10255E
RGB	rgb(16, 37, 94)
HSL	hsl(224, 71%, 22%)
HSV	hsv(224, 83%, 37%)
CMYK	cmyk(83%, 60.6%, 0%, 63.1%)
CIE-LAB	lab(16.70, 15.18, -36.38)
CIE-LCH	lch(16.70, 39.42, 292.64°)
OKLab	oklab(28.75% -0.0092 -0.105)
OKLCH	oklch(28.75% 0.105 265)
XYZ	xyz(2.8949, 2.2411, 10.8675)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10255E #5E4910

analogous

#104C5E #10255E #22105E

triadic

#10255E #5E1025 #255E10

tetradic

#10255E #5E104C #5E4910 #105E22

square

#10255E #5E104C #5E4910 #105E22

split-complementary

#10255E #5E2210 #4C5E10

monochromatic

#040A1A #07102A #10255E #193A92 #224EC7

Accessibility & contrast

On white

14.50

#10255E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#10255E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10255E

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10255E	#FFFFFF	#000000	##FFFFFF
##10255E	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D60

Deuteranopia (green-blind)

#00265D

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #10255e;
/* rgb */ color: rgb(16, 37, 94);
/* oklch */ color: oklch(28.7% 0.105 265.0);

Tailwind

colors: {
  custom: {
    50: '#5c5f8c',
    500: '#10255e',
    950: '#000000',
  },
}

SCSS

$custom: #10255e;
$custom-light: #5c5f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#10255e",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 94
  },
  "hsl": {
    "h": 223.846,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.28748,
    "c": 0.10541,
    "h": 265
  },
  "luminance": 0.02241
}

Semantic roles & 50–950 ramp

primary

#10255E

secondary

#977C33

accent

#BD3AEE

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #10255E

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

Preview Lab → · Contrast checker → · Palette generator →