#10313B#10313B

#10313B is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.4% C 0.042 H 221.0°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#10313B
RGB	rgb(16, 49, 59)
HSL	hsl(194, 57%, 15%)
HSV	hsv(194, 73%, 23%)
CMYK	cmyk(72.9%, 16.9%, 0%, 76.9%)
CIE-LAB	lab(18.46, -8.22, -9.89)
CIE-LCH	lch(18.46, 12.86, 230.28°)
OKLab	oklab(29.38% -0.0317 -0.0275)
OKLCH	oklch(29.38% 0.042 221)
XYZ	xyz(2.1011, 2.6223, 4.5323)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10313B #3B1A10

analogous

#103B2F #10313B #101C3B

triadic

#10313B #3B1031 #313B10

tetradic

#10313B #2F103B #3B1A10 #1C3B10

square

#10313B #2F103B #3B1A10 #1C3B10

split-complementary

#10313B #3B101C #3B2F10

monochromatic

#071418 #071418 #10313B #1D596B #2A819B

Accessibility & contrast

On white

13.77

#10313B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#10313B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10313B

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10313B	#FFFFFF	#000000	##FFFFFF
##10313B	1.00	13.77	1.52	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B303C

Deuteranopia (green-blind)

#252B3B

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #10313b;
/* rgb */ color: rgb(16, 49, 59);
/* oklch */ color: oklch(29.4% 0.042 221.0);

Tailwind

colors: {
  custom: {
    50: '#546971',
    500: '#10313b',
    950: '#000000',
  },
}

SCSS

$custom: #10313b;
$custom-light: #546971;
$custom-dark: #000000;

JSON

{
  "hex": "#10313b",
  "rgb": {
    "r": 16,
    "g": 49,
    "b": 59
  },
  "hsl": {
    "h": 193.953,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.29378,
    "c": 0.04201,
    "h": 221
  },
  "luminance": 0.02623
}

Semantic roles & 50–950 ramp

primary

#10313B

secondary

#754132

accent

#6B47E1

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #10313B

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

Preview Lab → · Contrast checker → · Palette generator →