#102A5C#102A5C

#102A5C is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.7% C 0.095 H 261.8°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#102A5C
RGB	rgb(16, 42, 92)
HSL	hsl(219, 70%, 21%)
HSV	hsv(219, 83%, 36%)
CMYK	cmyk(82.6%, 54.3%, 0%, 63.9%)
CIE-LAB	lab(18.09, 10.59, -32.81)
CIE-LCH	lch(18.09, 34.47, 287.88°)
OKLab	oklab(29.75% -0.0136 -0.0944)
OKLCH	oklch(29.75% 0.095 261.8)
XYZ	xyz(2.9727, 2.5385, 10.4564)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102A5C #5C4210

analogous

#10505C #102A5C #1C105C

triadic

#102A5C #5C102A #2A5C10

tetradic

#102A5C #5C1050 #5C4210 #105C1C

square

#102A5C #5C1050 #5C4210 #105C1C

split-complementary

#102A5C #5C1C10 #505C10

monochromatic

#050C1A #071228 #102A5C #194290 #225AC4

Accessibility & contrast

On white

13.93

#102A5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#102A5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102A5C

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102A5C	#FFFFFF	#000000	##FFFFFF
##102A5C	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B305E

Deuteranopia (green-blind)

#00295B

Tritanopia (blue-blind)

#00363E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #102a5c;
/* rgb */ color: rgb(16, 42, 92);
/* oklch */ color: oklch(29.7% 0.095 261.8);

Tailwind

colors: {
  custom: {
    50: '#5c638a',
    500: '#102a5c',
    950: '#000000',
  },
}

SCSS

$custom: #102a5c;
$custom-light: #5c638a;
$custom-dark: #000000;

JSON

{
  "hex": "#102a5c",
  "rgb": {
    "r": 16,
    "g": 42,
    "b": 92
  },
  "hsl": {
    "h": 219.474,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.29747,
    "c": 0.09537,
    "h": 261.8
  },
  "luminance": 0.02539
}

Semantic roles & 50–950 ramp

primary

#102A5C

secondary

#957333

accent

#B03BED

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#04050C

muted

#79797D

Preview Lab

Preview with #102A5C

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

Preview Lab → · Contrast checker → · Palette generator →