#10355D#10355D

#10355D is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.6% C 0.082 H 253.2°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#10355D
RGB	rgb(16, 53, 93)
HSL	hsl(211, 71%, 21%)
HSV	hsv(211, 83%, 36%)
CMYK	cmyk(82.8%, 43%, 0%, 63.5%)
CIE-LAB	lab(21.75, 3.03, -27.60)
CIE-LCH	lch(21.75, 27.76, 276.26°)
OKLab	oklab(32.59% -0.0238 -0.0788)
OKLCH	oklch(32.59% 0.082 253.2)
XYZ	xyz(3.4618, 3.4463, 10.8365)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10355D #5D3810

analogous

#105C5D #10355D #12105D

triadic

#10355D #5D1035 #355D10

tetradic

#10355D #5D105C #5D3810 #105D12

square

#10355D #5D105C #5D3810 #105D12

split-complementary

#10355D #5D1210 #5C5D10

monochromatic

#040F1A #071729 #10355D #195391 #2271C5

Accessibility & contrast

On white

12.43

#10355D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#10355D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10355D

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10355D	#FFFFFF	#000000	##FFFFFF
##10355D	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22385F

Deuteranopia (green-blind)

#15315C

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10355d;
/* rgb */ color: rgb(16, 53, 93);
/* oklch */ color: oklch(32.6% 0.082 253.2);

Tailwind

colors: {
  custom: {
    50: '#5b6b8b',
    500: '#10355d',
    950: '#000000',
  },
}

SCSS

$custom: #10355d;
$custom-light: #5b6b8b;
$custom-dark: #000000;

JSON

{
  "hex": "#10355d",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 93
  },
  "hsl": {
    "h": 211.169,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.32594,
    "c": 0.08236,
    "h": 253.2
  },
  "luminance": 0.03447
}

Semantic roles & 50–950 ramp

primary

#10355D

secondary

#966633

accent

#973AED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060C

muted

#797A7D

Preview Lab

Preview with #10355D

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

Preview Lab → · Contrast checker → · Palette generator →