#10143E#10143E

#10143E is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.079 H 273.7°. Best body text is #FFFFFF at 17.62:1 contrast (WCAG AA passes).

Color values

HEX	#10143E
RGB	rgb(16, 20, 62)
HSL	hsl(235, 59%, 15%)
HSV	hsv(235, 74%, 24%)
CMYK	cmyk(74.2%, 67.7%, 0%, 75.7%)
CIE-LAB	lab(8.64, 14.38, -27.53)
CIE-LCH	lch(8.64, 31.06, 297.58°)
OKLab	oklab(21.81% 0.0051 -0.0793)
OKLCH	oklch(21.81% 0.079 273.7)
XYZ	xyz(1.3331, 0.9582, 4.6712)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10143E #3E3A10

analogous

#102B3E #10143E #23103E

triadic

#10143E #3E1014 #143E10

tetradic

#10143E #3E102B #3E3A10 #103E23

square

#10143E #3E102B #3E3A10 #103E23

split-complementary

#10143E #3E2310 #2B3E10

monochromatic

#060818 #060818 #10143E #1D246F #29339F

Accessibility & contrast

On white

17.62

#10143E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#10143E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10143E

17.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10143E	#FFFFFF	#000000	##FFFFFF
##10143E	1.00	17.62	1.19	17.62
#FFFFFF	17.62	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3F

Deuteranopia (green-blind)

#00173D

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #10143e;
/* rgb */ color: rgb(16, 20, 62);
/* oklch */ color: oklch(21.8% 0.079 273.7);

Tailwind

colors: {
  custom: {
    50: '#555174',
    500: '#10143e',
    950: '#000000',
  },
}

SCSS

$custom: #10143e;
$custom-light: #555174;
$custom-dark: #000000;

JSON

{
  "hex": "#10143e",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 62
  },
  "hsl": {
    "h": 234.783,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2181,
    "c": 0.07944,
    "h": 273.7
  },
  "luminance": 0.00958
}

Semantic roles & 50–950 ramp

primary

#10143E

secondary

#787232

accent

#D546E2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #10143E

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

Preview Lab → · Contrast checker → · Palette generator →