#10203D#10203D

#10203D is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.7% C 0.059 H 261.3°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#10203D
RGB	rgb(16, 32, 61)
HSL	hsl(219, 58%, 15%)
HSV	hsv(219, 74%, 24%)
CMYK	cmyk(73.8%, 47.5%, 0%, 76.1%)
CIE-LAB	lab(12.48, 4.64, -20.64)
CIE-LCH	lch(12.48, 21.15, 282.66°)
OKLab	oklab(24.7% -0.009 -0.0588)
OKLCH	oklch(24.7% 0.059 261.3)
XYZ	xyz(1.5722, 1.4800, 4.6168)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10203D #3D2D10

analogous

#10363D #10203D #17103D

triadic

#10203D #3D1020 #203D10

tetradic

#10203D #3D1036 #3D2D10 #103D17

square

#10203D #3D1036 #3D2D10 #103D17

split-complementary

#10203D #3D1710 #363D10

monochromatic

#060D18 #060D18 #10203D #1D396D #29539E

Accessibility & contrast

On white

16.20

#10203D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#10203D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10203D

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10203D	#FFFFFF	#000000	##FFFFFF
##10203D	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13233E

Deuteranopia (green-blind)

#0C1F3C

Tritanopia (blue-blind)

#00272B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #10203d;
/* rgb */ color: rgb(16, 32, 61);
/* oklch */ color: oklch(24.7% 0.059 261.3);

Tailwind

colors: {
  custom: {
    50: '#545b72',
    500: '#10203d',
    950: '#000000',
  },
}

SCSS

$custom: #10203d;
$custom-light: #545b72;
$custom-dark: #000000;

JSON

{
  "hex": "#10203d",
  "rgb": {
    "r": 16,
    "g": 32,
    "b": 61
  },
  "hsl": {
    "h": 218.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.24698,
    "c": 0.05948,
    "h": 261.3
  },
  "luminance": 0.0148
}

Semantic roles & 50–950 ramp

primary

#10203D

secondary

#775E32

accent

#AA46E2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #10203D

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

Preview Lab → · Contrast checker → · Palette generator →