#10285D#10285D

#10285D is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.4% C 0.100 H 263.2°. Best body text is #FFFFFF at 14.15:1 contrast (WCAG AA passes).

Color values

HEX	#10285D
RGB	rgb(16, 40, 93)
HSL	hsl(221, 71%, 21%)
HSV	hsv(221, 83%, 36%)
CMYK	cmyk(82.8%, 57%, 0%, 63.5%)
CIE-LAB	lab(17.54, 12.51, -34.36)
CIE-LCH	lch(17.54, 36.57, 290.01°)
OKLab	oklab(29.35% -0.0117 -0.099)
OKLCH	oklch(29.35% 0.1 263.2)
XYZ	xyz(2.9476, 2.4177, 10.6651)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10285D #5D4510

analogous

#104F5D #10285D #1F105D

triadic

#10285D #5D1028 #285D10

tetradic

#10285D #5D104F #5D4510 #105D1F

square

#10285D #5D104F #5D4510 #105D1F

split-complementary

#10285D #5D1F10 #4F5D10

monochromatic

#040B1A #071229 #10285D #193E91 #2255C5

Accessibility & contrast

On white

14.15

#10285D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#10285D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10285D

14.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10285D	#FFFFFF	#000000	##FFFFFF
##10285D	1.00	14.15	1.48	14.15
#FFFFFF	14.15	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#022F5F

Deuteranopia (green-blind)

#00285C

Tritanopia (blue-blind)

#00353E

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #10285d;
/* rgb */ color: rgb(16, 40, 93);
/* oklch */ color: oklch(29.4% 0.100 263.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#10285d",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 93
  },
  "hsl": {
    "h": 221.299,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.29354,
    "c": 0.0997,
    "h": 263.2
  },
  "luminance": 0.02418
}

Semantic roles & 50–950 ramp

primary

#10285D

secondary

#967733

accent

#B63AED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #10285D

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

Preview Lab → · Contrast checker → · Palette generator →