#10255C#10255C

#10255C is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.6% C 0.102 H 264.8°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#10255C
RGB	rgb(16, 37, 92)
HSL	hsl(223, 70%, 21%)
HSV	hsv(223, 83%, 36%)
CMYK	cmyk(82.6%, 59.8%, 0%, 63.9%)
CIE-LAB	lab(16.53, 14.32, -35.34)
CIE-LCH	lch(16.53, 38.13, 292.05°)
OKLab	oklab(28.56% -0.0093 -0.1019)
OKLCH	oklch(28.56% 0.102 264.8)
XYZ	xyz(2.8063, 2.2057, 10.4010)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10255C #5C4710

analogous

#104B5C #10255C #21105C

triadic

#10255C #5C1025 #255C10

tetradic

#10255C #5C104B #5C4710 #105C21

square

#10255C #5C104B #5C4710 #105C21

split-complementary

#10255C #5C2110 #4B5C10

monochromatic

#050A1A #071028 #10255C #193A90 #224FC4

Accessibility & contrast

On white

14.57

#10255C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#10255C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10255C

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10255C	#FFFFFF	#000000	##FFFFFF
##10255C	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00265B

Tritanopia (blue-blind)

#00333C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #10255c;
/* rgb */ color: rgb(16, 37, 92);
/* oklch */ color: oklch(28.6% 0.102 264.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#10255c",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 92
  },
  "hsl": {
    "h": 223.421,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.28563,
    "c": 0.10235,
    "h": 264.8
  },
  "luminance": 0.02206
}

Semantic roles & 50–950 ramp

primary

#10255C

secondary

#957A33

accent

#BC3BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #10255C

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

Preview Lab → · Contrast checker → · Palette generator →