#102B59#102B59

#102B59 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 29.7% C 0.089 H 260.3°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#102B59
RGB	rgb(16, 43, 89)
HSL	hsl(218, 70%, 21%)
HSV	hsv(218, 82%, 35%)
CMYK	cmyk(82%, 51.7%, 0%, 65.1%)
CIE-LAB	lab(18.18, 8.54, -30.67)
CIE-LCH	lch(18.18, 31.83, 285.56°)
OKLab	oklab(29.74% -0.015 -0.0881)
OKLCH	oklch(29.74% 0.089 260.3)
XYZ	xyz(2.8801, 2.5589, 9.7914)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B59 #593E10

analogous

#104F59 #102B59 #191059

triadic

#102B59 #59102B #2B5910

tetradic

#102B59 #59104F #593E10 #105919

square

#102B59 #59104F #593E10 #105919

split-complementary

#102B59 #591910 #4F5910

monochromatic

#050D1A #071225 #102B59 #19448D #235DC1

Accessibility & contrast

On white

13.89

#102B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#102B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B59

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B59	#FFFFFF	#000000	##FFFFFF
##102B59	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11305B

Deuteranopia (green-blind)

#002958

Tritanopia (blue-blind)

#00363D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102b59;
/* rgb */ color: rgb(16, 43, 89);
/* oklch */ color: oklch(29.7% 0.089 260.3);

Tailwind

colors: {
  custom: {
    50: '#5b6388',
    500: '#102b59',
    950: '#000000',
  },
}

SCSS

$custom: #102b59;
$custom-light: #5b6388;
$custom-dark: #000000;

JSON

{
  "hex": "#102b59",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 89
  },
  "hsl": {
    "h": 217.808,
    "s": 69.524,
    "l": 20.588
  },
  "oklch": {
    "l": 0.29743,
    "c": 0.08933,
    "h": 260.3
  },
  "luminance": 0.02559
}

Semantic roles & 50–950 ramp

primary

#102B59

secondary

#926F33

accent

#AB3BEC

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#04050B

muted

#79797C

Preview Lab

Preview with #102B59

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

Preview Lab → · Contrast checker → · Palette generator →