#102B8D#102B8D

#102B8D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.164 H 265.5°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#102B8D
RGB	rgb(16, 43, 141)
HSL	hsl(227, 80%, 31%)
HSV	hsv(227, 89%, 55%)
CMYK	cmyk(88.7%, 69.5%, 0%, 44.7%)
CIE-LAB	lab(22.86, 30.28, -56.45)
CIE-LCH	lch(22.86, 64.06, 298.21°)
OKLab	oklab(34.69% -0.0128 -0.1637)
OKLCH	oklch(34.69% 0.164 265.5)
XYZ	xyz(5.8836, 3.7603, 25.6098)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102B8D #8D7210

analogous

#10698D #102B8D #33108D

triadic

#102B8D #8D102B #2B8D10

tetradic

#102B8D #8D1069 #8D7210 #108D33

square

#102B8D #8D1069 #8D7210 #108D33

split-complementary

#102B8D #8D3310 #698D10

monochromatic

#04091F #0A1A56 #102B8D #163CC4 #3058E7

Accessibility & contrast

On white

11.98

#102B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#102B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102B8D

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102B8D	#FFFFFF	#000000	##FFFFFF
##102B8D	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D90

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #102b8d;
/* rgb */ color: rgb(16, 43, 141);
/* oklch */ color: oklch(34.7% 0.164 265.5);

Tailwind

colors: {
  custom: {
    50: '#6a64af',
    500: '#102b8d',
    950: '#000000',
  },
}

SCSS

$custom: #102b8d;
$custom-light: #6a64af;
$custom-dark: #000000;

JSON

{
  "hex": "#102b8d",
  "rgb": {
    "r": 16,
    "g": 43,
    "b": 141
  },
  "hsl": {
    "h": 227.04,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34689,
    "c": 0.16417,
    "h": 265.5
  },
  "luminance": 0.03761
}

Semantic roles & 50–950 ramp

primary

#102B8D

secondary

#C2A437

accent

#CC32F6

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080511

muted

#7B7A80

Preview Lab

Preview with #102B8D

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

Preview Lab → · Contrast checker → · Palette generator →