#10143A#10143A

#10143A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.4% C 0.073 H 274.0°. Best body text is #FFFFFF at 17.75:1 contrast (WCAG AA passes).

Color values

HEX	#10143A
RGB	rgb(16, 20, 58)
HSL	hsl(234, 57%, 15%)
HSV	hsv(234, 72%, 23%)
CMYK	cmyk(72.4%, 65.5%, 0%, 77.3%)
CIE-LAB	lab(8.27, 12.69, -25.27)
CIE-LCH	lch(8.27, 28.28, 296.67°)
OKLab	oklab(21.42% 0.0051 -0.0726)
OKLCH	oklch(21.42% 0.073 274)
XYZ	xyz(1.2273, 0.9159, 4.1143)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10143A #3A3610

analogous

#10293A #10143A #21103A

triadic

#10143A #3A1014 #143A10

tetradic

#10143A #3A1029 #3A3610 #103A21

square

#10143A #3A1029 #3A3610 #103A21

split-complementary

#10143A #3A2110 #293A10

monochromatic

#070818 #070818 #10143A #1D256A #2A359A

Accessibility & contrast

On white

17.75

#10143A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#10143A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10143A

17.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10143A	#FFFFFF	#000000	##FFFFFF
##10143A	1.00	17.75	1.18	17.75
#FFFFFF	17.75	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3B

Deuteranopia (green-blind)

#001639

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #10143a;
/* rgb */ color: rgb(16, 20, 58);
/* oklch */ color: oklch(21.4% 0.073 274.0);

Tailwind

colors: {
  custom: {
    50: '#545170',
    500: '#10143a',
    950: '#000000',
  },
}

SCSS

$custom: #10143a;
$custom-light: #545170;
$custom-dark: #000000;

JSON

{
  "hex": "#10143a",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 58
  },
  "hsl": {
    "h": 234.286,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.2142,
    "c": 0.07279,
    "h": 274
  },
  "luminance": 0.00916
}

Semantic roles & 50–950 ramp

primary

#10143A

secondary

#746E32

accent

#D248E0

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #10143A

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

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