#10143D#10143D

#10143D is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.7% C 0.078 H 273.8°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#10143D
RGB	rgb(16, 20, 61)
HSL	hsl(235, 58%, 15%)
HSV	hsv(235, 74%, 24%)
CMYK	cmyk(73.8%, 67.2%, 0%, 76.1%)
CIE-LAB	lab(8.54, 13.96, -26.97)
CIE-LCH	lch(8.54, 30.37, 297.36°)
OKLab	oklab(21.71% 0.0051 -0.0776)
OKLCH	oklch(21.71% 0.078 273.8)
XYZ	xyz(1.3059, 0.9473, 4.5280)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10143D #3D3910

analogous

#102A3D #10143D #23103D

triadic

#10143D #3D1014 #143D10

tetradic

#10143D #3D102A #3D3910 #103D23

square

#10143D #3D102A #3D3910 #103D23

split-complementary

#10143D #3D2310 #2A3D10

monochromatic

#060818 #060818 #10143D #1D246D #29349E

Accessibility & contrast

On white

17.66

#10143D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#10143D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10143D

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10143D	#FFFFFF	#000000	##FFFFFF
##10143D	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3E

Deuteranopia (green-blind)

#00173C

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #10143d;
/* rgb */ color: rgb(16, 20, 61);
/* oklch */ color: oklch(21.7% 0.078 273.8);

Tailwind

colors: {
  custom: {
    50: '#555173',
    500: '#10143d',
    950: '#000000',
  },
}

SCSS

$custom: #10143d;
$custom-light: #555173;
$custom-dark: #000000;

JSON

{
  "hex": "#10143d",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 61
  },
  "hsl": {
    "h": 234.667,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21711,
    "c": 0.07779,
    "h": 273.8
  },
  "luminance": 0.00947
}

Semantic roles & 50–950 ramp

primary

#10143D

secondary

#777132

accent

#D446E2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #10143D

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

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