#102F5C#102F5C

#102F5C is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.089 H 258.1°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#102F5C
RGB	rgb(16, 47, 92)
HSL	hsl(216, 70%, 21%)
HSV	hsv(216, 83%, 36%)
CMYK	cmyk(82.6%, 48.9%, 0%, 63.9%)
CIE-LAB	lab(19.70, 6.91, -30.22)
CIE-LCH	lch(19.70, 31.00, 282.88°)
OKLab	oklab(30.98% -0.0182 -0.0866)
OKLCH	oklch(30.98% 0.089 258.1)
XYZ	xyz(3.1613, 2.9155, 10.5193)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102F5C #5C3D10

analogous

#10555C #102F5C #17105C

triadic

#102F5C #5C102F #2F5C10

tetradic

#102F5C #5C1055 #5C3D10 #105C17

square

#102F5C #5C1055 #5C3D10 #105C17

split-complementary

#102F5C #5C1710 #555C10

monochromatic

#050D1A #071428 #102F5C #194A90 #2264C4

Accessibility & contrast

On white

13.26

#102F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#102F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102F5C

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102F5C	#FFFFFF	#000000	##FFFFFF
##102F5C	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17335E

Deuteranopia (green-blind)

#062C5B

Tritanopia (blue-blind)

#003A41

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #102f5c;
/* rgb */ color: rgb(16, 47, 92);
/* oklch */ color: oklch(31.0% 0.089 258.1);

Tailwind

colors: {
  custom: {
    50: '#5b678a',
    500: '#102f5c',
    950: '#000000',
  },
}

SCSS

$custom: #102f5c;
$custom-light: #5b678a;
$custom-dark: #000000;

JSON

{
  "hex": "#102f5c",
  "rgb": {
    "r": 16,
    "g": 47,
    "b": 92
  },
  "hsl": {
    "h": 215.526,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.30983,
    "c": 0.08854,
    "h": 258.1
  },
  "luminance": 0.02916
}

Semantic roles & 50–950 ramp

primary

#102F5C

secondary

#956D33

accent

#A43BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060C

muted

#797A7D

Preview Lab

Preview with #102F5C

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

Preview Lab → · Contrast checker → · Palette generator →