#10133B#10133B

#10133B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.3% C 0.076 H 274.7°. Best body text is #FFFFFF at 17.82:1 contrast (WCAG AA passes).

Color values

HEX	#10133B
RGB	rgb(16, 19, 59)
HSL	hsl(236, 57%, 15%)
HSV	hsv(236, 73%, 23%)
CMYK	cmyk(72.9%, 67.8%, 0%, 76.9%)
CIE-LAB	lab(8.05, 13.89, -26.34)
CIE-LCH	lch(8.05, 29.78, 297.81°)
OKLab	oklab(21.29% 0.0062 -0.0758)
OKLCH	oklch(21.29% 0.076 274.7)
XYZ	xyz(1.2357, 0.8916, 4.2438)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10133B #3B3810

analogous

#10293B #10133B #23103B

triadic

#10133B #3B1013 #133B10

tetradic

#10133B #3B1029 #3B3810 #103B23

square

#10133B #3B1029 #3B3810 #103B23

split-complementary

#10133B #3B2310 #293B10

monochromatic

#070818 #070818 #10133B #1D236B #2A329B

Accessibility & contrast

On white

17.82

#10133B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#10133B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10133B

17.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10133B	#FFFFFF	#000000	##FFFFFF
##10133B	1.00	17.82	1.18	17.82
#FFFFFF	17.82	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3C

Deuteranopia (green-blind)

#00163A

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #10133b;
/* rgb */ color: rgb(16, 19, 59);
/* oklch */ color: oklch(21.3% 0.076 274.7);

Tailwind

colors: {
  custom: {
    50: '#545071',
    500: '#10133b',
    950: '#000000',
  },
}

SCSS

$custom: #10133b;
$custom-light: #545071;
$custom-dark: #000000;

JSON

{
  "hex": "#10133b",
  "rgb": {
    "r": 16,
    "g": 19,
    "b": 59
  },
  "hsl": {
    "h": 235.814,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.21288,
    "c": 0.07602,
    "h": 274.7
  },
  "luminance": 0.00892
}

Semantic roles & 50–950 ramp

primary

#10133B

secondary

#757032

accent

#D647E1

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #10133B

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

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