#10203C#10203C

#10203C is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.6% C 0.058 H 260.8°. Best body text is #FFFFFF at 16.23:1 contrast (WCAG AA passes).

Color values

HEX	#10203C
RGB	rgb(16, 32, 60)
HSL	hsl(218, 58%, 15%)
HSV	hsv(218, 73%, 24%)
CMYK	cmyk(73.3%, 46.7%, 0%, 76.5%)
CIE-LAB	lab(12.41, 4.21, -20.04)
CIE-LCH	lch(12.41, 20.48, 281.86°)
OKLab	oklab(24.62% -0.0092 -0.057)
OKLCH	oklch(24.62% 0.058 260.8)
XYZ	xyz(1.5455, 1.4693, 4.4762)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10203C #3C2C10

analogous

#10363C #10203C #16103C

triadic

#10203C #3C1020 #203C10

tetradic

#10203C #3C1036 #3C2C10 #103C16

square

#10203C #3C1036 #3C2C10 #103C16

split-complementary

#10203C #3C1610 #363C10

monochromatic

#060D18 #060D18 #10203C #1D3A6C #2A549D

Accessibility & contrast

On white

16.23

#10203C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#10203C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10203C

16.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10203C	#FFFFFF	#000000	##FFFFFF
##10203C	1.00	16.23	1.29	16.23
#FFFFFF	16.23	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13233D

Deuteranopia (green-blind)

#0D1E3B

Tritanopia (blue-blind)

#00262B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #10203c;
/* rgb */ color: rgb(16, 32, 60);
/* oklch */ color: oklch(24.6% 0.058 260.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#10203c",
  "rgb": {
    "r": 16,
    "g": 32,
    "b": 60
  },
  "hsl": {
    "h": 218.182,
    "s": 57.895,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24622,
    "c": 0.05779,
    "h": 260.8
  },
  "luminance": 0.01469
}

Semantic roles & 50–950 ramp

primary

#10203C

secondary

#765D32

accent

#A947E1

background

#F4F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030408

muted

#78797B

Preview Lab

Preview with #10203C

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

Preview Lab → · Contrast checker → · Palette generator →