#102B5E#102B5E

#102B5E is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.2% C 0.097 H 261.6°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#102B5E
RGB	rgb(16, 43, 94)
HSL	hsl(219, 71%, 22%)
HSV	hsv(219, 83%, 37%)
CMYK	cmyk(83%, 54.3%, 0%, 63.1%)
CIE-LAB	lab(18.57, 10.72, -33.37)
CIE-LCH	lch(18.57, 35.05, 287.80°)
OKLab	oklab(30.16% -0.0142 -0.096)
OKLCH	oklch(30.16% 0.097 261.6)
XYZ	xyz(3.0972, 2.6457, 10.9349)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B5E #5E4310

analogous

#10525E #102B5E #1C105E

triadic

#102B5E #5E102B #2B5E10

tetradic

#102B5E #5E1052 #5E4310 #105E1C

square

#102B5E #5E1052 #5E4310 #105E1C

split-complementary

#102B5E #5E1C10 #525E10

monochromatic

#040C1A #07132A #102B5E #194392 #225BC7

Accessibility & contrast

On white

13.73

#102B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#102B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B5E

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B5E	#FFFFFF	#000000	##FFFFFF
##102B5E	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3160

Deuteranopia (green-blind)

#002A5D

Tritanopia (blue-blind)

#003740

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #102b5e;
/* rgb */ color: rgb(16, 43, 94);
/* oklch */ color: oklch(30.2% 0.097 261.6);

Tailwind

colors: {
  custom: {
    50: '#5c638c',
    500: '#102b5e',
    950: '#000000',
  },
}

SCSS

$custom: #102b5e;
$custom-light: #5c638c;
$custom-dark: #000000;

JSON

{
  "hex": "#102b5e",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 94
  },
  "hsl": {
    "h": 219.231,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.30158,
    "c": 0.09706,
    "h": 261.6
  },
  "luminance": 0.02646
}

Semantic roles & 50–950 ramp

primary

#102B5E

secondary

#977433

accent

#B03AEE

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #102B5E

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

Preview Lab → · Contrast checker → · Palette generator →