#10333B#10333B

#10333B is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.0% C 0.042 H 215.4°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#10333B
RGB	rgb(16, 51, 59)
HSL	hsl(191, 57%, 15%)
HSV	hsv(191, 73%, 23%)
CMYK	cmyk(72.9%, 13.6%, 0%, 76.9%)
CIE-LAB	lab(19.20, -9.50, -8.77)
CIE-LCH	lch(19.20, 12.94, 222.72°)
OKLab	oklab(29.97% -0.0343 -0.0244)
OKLCH	oklch(29.97% 0.042 215.4)
XYZ	xyz(2.1866, 2.7933, 4.5608)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10333B #3B1810

analogous

#103B2E #10333B #101E3B

triadic

#10333B #3B1033 #333B10

tetradic

#10333B #2E103B #3B1810 #1E3B10

square

#10333B #2E103B #3B1810 #1E3B10

split-complementary

#10333B #3B101E #3B2E10

monochromatic

#071518 #071518 #10333B #1D5D6B #2A869B

Accessibility & contrast

On white

13.47

#10333B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#10333B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10333B

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10333B	#FFFFFF	#000000	##FFFFFF
##10333B	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D313B

Deuteranopia (green-blind)

#272D3B

Tritanopia (blue-blind)

#003635

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #10333b;
/* rgb */ color: rgb(16, 51, 59);
/* oklch */ color: oklch(30.0% 0.042 215.4);

Tailwind

colors: {
  custom: {
    50: '#546a70',
    500: '#10333b',
    950: '#000000',
  },
}

SCSS

$custom: #10333b;
$custom-light: #546a70;
$custom-dark: #000000;

JSON

{
  "hex": "#10333b",
  "rgb": {
    "r": 16,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 191.163,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.29967,
    "c": 0.0421,
    "h": 215.4
  },
  "luminance": 0.02794
}

Semantic roles & 50–950 ramp

primary

#10333B

secondary

#753E32

accent

#6447E1

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #10333B

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

Preview Lab → · Contrast checker → · Palette generator →