#102A5D#102A5D

#102A5D is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.8% C 0.097 H 262.0°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#102A5D
RGB	rgb(16, 42, 93)
HSL	hsl(220, 71%, 21%)
HSV	hsv(220, 83%, 36%)
CMYK	cmyk(82.8%, 54.8%, 0%, 63.5%)
CIE-LAB	lab(18.17, 11.02, -33.34)
CIE-LCH	lch(18.17, 35.12, 288.29°)
OKLab	oklab(29.83% -0.0134 -0.096)
OKLCH	oklch(29.83% 0.097 262)
XYZ	xyz(3.0167, 2.5561, 10.6882)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102A5D #5D4310

analogous

#10515D #102A5D #1D105D

triadic

#102A5D #5D102A #2A5D10

tetradic

#102A5D #5D1051 #5D4310 #105D1D

square

#102A5D #5D1051 #5D4310 #105D1D

split-complementary

#102A5D #5D1D10 #515D10

monochromatic

#040C1A #071229 #102A5D #194291 #2259C5

Accessibility & contrast

On white

13.90

#102A5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#102A5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102A5D

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102A5D	#FFFFFF	#000000	##FFFFFF
##102A5D	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09305F

Deuteranopia (green-blind)

#00295C

Tritanopia (blue-blind)

#00363F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102a5d;
/* rgb */ color: rgb(16, 42, 93);
/* oklch */ color: oklch(29.8% 0.097 262.0);

Tailwind

colors: {
  custom: {
    50: '#5c638b',
    500: '#102a5d',
    950: '#000000',
  },
}

SCSS

$custom: #102a5d;
$custom-light: #5c638b;
$custom-dark: #000000;

JSON

{
  "hex": "#102a5d",
  "rgb": {
    "r": 16,
    "g": 42,
    "b": 93
  },
  "hsl": {
    "h": 219.74,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.29832,
    "c": 0.09691,
    "h": 262
  },
  "luminance": 0.02556
}

Semantic roles & 50–950 ramp

primary

#102A5D

secondary

#967533

accent

#B13AED

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #102A5D

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

Preview Lab → · Contrast checker → · Palette generator →