#10203E#10203E

#10203E is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.8% C 0.061 H 261.8°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#10203E
RGB	rgb(16, 32, 62)
HSL	hsl(219, 59%, 15%)
HSV	hsv(219, 74%, 24%)
CMYK	cmyk(74.2%, 48.4%, 0%, 75.7%)
CIE-LAB	lab(12.55, 5.07, -21.23)
CIE-LCH	lch(12.55, 21.83, 283.43°)
OKLab	oklab(24.77% -0.0087 -0.0605)
OKLCH	oklch(24.77% 0.061 261.8)
XYZ	xyz(1.5994, 1.4908, 4.7600)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10203E #3E2E10

analogous

#10373E #10203E #17103E

triadic

#10203E #3E1020 #203E10

tetradic

#10203E #3E1037 #3E2E10 #103E17

square

#10203E #3E1037 #3E2E10 #103E17

split-complementary

#10203E #3E1710 #373E10

monochromatic

#060D18 #060D18 #10203E #1D396F #29529F

Accessibility & contrast

On white

16.18

#10203E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#10203E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10203E

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10203E	#FFFFFF	#000000	##FFFFFF
##10203E	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12233F

Deuteranopia (green-blind)

#0B1F3D

Tritanopia (blue-blind)

#00272B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #10203e;
/* rgb */ color: rgb(16, 32, 62);
/* oklch */ color: oklch(24.8% 0.061 261.8);

Tailwind

colors: {
  custom: {
    50: '#545b73',
    500: '#10203e',
    950: '#000000',
  },
}

SCSS

$custom: #10203e;
$custom-light: #545b73;
$custom-dark: #000000;

JSON

{
  "hex": "#10203e",
  "rgb": {
    "r": 16,
    "g": 32,
    "b": 62
  },
  "hsl": {
    "h": 219.13,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.24774,
    "c": 0.06117,
    "h": 261.8
  },
  "luminance": 0.01491
}

Semantic roles & 50–950 ramp

primary

#10203E

secondary

#786032

accent

#AC46E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #10203E

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

Preview Lab → · Contrast checker → · Palette generator →