#10285C#10285C

#10285C is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.3% C 0.098 H 263.1°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#10285C
RGB	rgb(16, 40, 92)
HSL	hsl(221, 70%, 21%)
HSV	hsv(221, 83%, 36%)
CMYK	cmyk(82.6%, 56.5%, 0%, 63.9%)
CIE-LAB	lab(17.46, 12.08, -33.83)
CIE-LCH	lch(17.46, 35.92, 289.65°)
OKLab	oklab(29.27% -0.0118 -0.0974)
OKLCH	oklch(29.27% 0.098 263.1)
XYZ	xyz(2.9036, 2.4001, 10.4334)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10285C #5C4410

analogous

#104E5C #10285C #1E105C

triadic

#10285C #5C1028 #285C10

tetradic

#10285C #5C104E #5C4410 #105C1E

square

#10285C #5C104E #5C4410 #105C1E

split-complementary

#10285C #5C1E10 #4E5C10

monochromatic

#050B1A #071128 #10285C #193F90 #2255C4

Accessibility & contrast

On white

14.19

#10285C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#10285C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10285C

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10285C	#FFFFFF	#000000	##FFFFFF
##10285C	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042F5E

Deuteranopia (green-blind)

#00285B

Tritanopia (blue-blind)

#00353D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #10285c;
/* rgb */ color: rgb(16, 40, 92);
/* oklch */ color: oklch(29.3% 0.098 263.1);

Tailwind

colors: {
  custom: {
    50: '#5c618b',
    500: '#10285c',
    950: '#000000',
  },
}

SCSS

$custom: #10285c;
$custom-light: #5c618b;
$custom-dark: #000000;

JSON

{
  "hex": "#10285c",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 92
  },
  "hsl": {
    "h": 221.053,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.29266,
    "c": 0.09816,
    "h": 263.1
  },
  "luminance": 0.024
}

Semantic roles & 50–950 ramp

primary

#10285C

secondary

#957633

accent

#B53BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #10285C

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

Preview Lab → · Contrast checker → · Palette generator →