#102559#102559

#102559 is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.3% C 0.098 H 264.4°. Best body text is #FFFFFF at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#102559
RGB	rgb(16, 37, 89)
HSL	hsl(223, 70%, 21%)
HSV	hsv(223, 82%, 35%)
CMYK	cmyk(82%, 58.4%, 0%, 65.1%)
CIE-LAB	lab(16.28, 13.02, -33.75)
CIE-LCH	lch(16.28, 36.17, 291.09°)
OKLab	oklab(28.29% -0.0096 -0.0973)
OKLCH	oklch(28.29% 0.098 264.4)
XYZ	xyz(2.6778, 2.1543, 9.7239)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102559 #594410

analogous

#104959 #102559 #1F1059

triadic

#102559 #591025 #255910

tetradic

#102559 #591049 #594410 #10591F

square

#102559 #591049 #594410 #10591F

split-complementary

#102559 #591F10 #495910

monochromatic

#050B1A #070F25 #102559 #193B8D #2350C1

Accessibility & contrast

On white

14.68

#102559 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#102559 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102559

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102559	#FFFFFF	#000000	##FFFFFF
##102559	1.00	14.68	1.43	14.68
#FFFFFF	14.68	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5B

Deuteranopia (green-blind)

#002558

Tritanopia (blue-blind)

#00323B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #102559;
/* rgb */ color: rgb(16, 37, 89);
/* oklch */ color: oklch(28.3% 0.098 264.4);

Tailwind

colors: {
  custom: {
    50: '#5b5f88',
    500: '#102559',
    950: '#000000',
  },
}

SCSS

$custom: #102559;
$custom-light: #5b5f88;
$custom-dark: #000000;

JSON

{
  "hex": "#102559",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 89
  },
  "hsl": {
    "h": 222.74,
    "s": 69.524,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2829,
    "c": 0.09773,
    "h": 264.4
  },
  "luminance": 0.02155
}

Semantic roles & 50–950 ramp

primary

#102559

secondary

#927733

accent

#B93BEC

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04040B

muted

#79797C

Preview Lab

Preview with #102559

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

Preview Lab → · Contrast checker → · Palette generator →