#102D5A#102D5A

#102D5A is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.3% C 0.088 H 259.1°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#102D5A
RGB	rgb(16, 45, 90)
HSL	hsl(216, 70%, 21%)
HSV	hsv(216, 82%, 35%)
CMYK	cmyk(82.2%, 50%, 0%, 64.7%)
CIE-LAB	lab(18.91, 7.50, -30.17)
CIE-LCH	lch(18.91, 31.09, 283.96°)
OKLab	oklab(30.32% -0.0167 -0.0866)
OKLCH	oklch(30.32% 0.088 259.1)
XYZ	xyz(2.9969, 2.7248, 10.0389)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102D5A #5A3D10

analogous

#10525A #102D5A #18105A

triadic

#102D5A #5A102D #2D5A10

tetradic

#102D5A #5A1052 #5A3D10 #105A18

square

#102D5A #5A1052 #5A3D10 #105A18

split-complementary

#102D5A #5A1810 #525A10

monochromatic

#050D1A #071326 #102D5A #19478E #2261C2

Accessibility & contrast

On white

13.59

#102D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#102D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102D5A

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102D5A	#FFFFFF	#000000	##FFFFFF
##102D5A	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15325C

Deuteranopia (green-blind)

#042B59

Tritanopia (blue-blind)

#00383F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #102d5a;
/* rgb */ color: rgb(16, 45, 90);
/* oklch */ color: oklch(30.3% 0.088 259.1);

Tailwind

colors: {
  custom: {
    50: '#5b6589',
    500: '#102d5a',
    950: '#000000',
  },
}

SCSS

$custom: #102d5a;
$custom-light: #5b6589;
$custom-dark: #000000;

JSON

{
  "hex": "#102d5a",
  "rgb": {
    "r": 16,
    "g": 45,
    "b": 90
  },
  "hsl": {
    "h": 216.486,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30323,
    "c": 0.08815,
    "h": 259.1
  },
  "luminance": 0.02725
}

Semantic roles & 50–950 ramp

primary

#102D5A

secondary

#936D33

accent

#A73BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04050B

muted

#797A7C

Preview Lab

Preview with #102D5A

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

Preview Lab → · Contrast checker → · Palette generator →