#102A8D#102A8D

#102A8D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.5% C 0.165 H 265.7°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#102A8D
RGB	rgb(16, 42, 141)
HSL	hsl(228, 80%, 31%)
HSV	hsv(228, 89%, 55%)
CMYK	cmyk(88.7%, 70.2%, 0%, 44.7%)
CIE-LAB	lab(22.61, 30.95, -56.86)
CIE-LCH	lch(22.61, 64.74, 298.56°)
OKLab	oklab(34.51% -0.0124 -0.1649)
OKLCH	oklch(34.51% 0.165 265.7)
XYZ	xyz(5.8477, 3.6884, 25.5979)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102A8D #8D7310

analogous

#10688D #102A8D #34108D

triadic

#102A8D #8D102A #2A8D10

tetradic

#102A8D #8D1068 #8D7310 #108D34

square

#102A8D #8D1068 #8D7310 #108D34

split-complementary

#102A8D #8D3410 #688D10

monochromatic

#04091F #0A1A56 #102A8D #163AC4 #3056E7

Accessibility & contrast

On white

12.08

#102A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#102A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102A8D

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102A8D	#FFFFFF	#000000	##FFFFFF
##102A8D	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C90

Deuteranopia (green-blind)

#00308B

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #102a8d;
/* rgb */ color: rgb(16, 42, 141);
/* oklch */ color: oklch(34.5% 0.165 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a63af',
    500: '#102a8d',
    950: '#000000',
  },
}

SCSS

$custom: #102a8d;
$custom-light: #6a63af;
$custom-dark: #000000;

JSON

{
  "hex": "#102a8d",
  "rgb": {
    "r": 16,
    "g": 42,
    "b": 141
  },
  "hsl": {
    "h": 227.52,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34507,
    "c": 0.16533,
    "h": 265.7
  },
  "luminance": 0.03689
}

Semantic roles & 50–950 ramp

primary

#102A8D

secondary

#C2A537

accent

#CD32F6

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #102A8D

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

Preview Lab → · Contrast checker → · Palette generator →