#10375D#10375D

#10375D is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 33.1% C 0.080 H 251.2°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#10375D
RGB	rgb(16, 55, 93)
HSL	hsl(210, 71%, 21%)
HSV	hsv(210, 83%, 36%)
CMYK	cmyk(82.8%, 40.9%, 0%, 63.5%)
CIE-LAB	lab(22.42, 1.62, -26.54)
CIE-LCH	lch(22.42, 26.59, 273.50°)
OKLab	oklab(33.12% -0.0258 -0.0757)
OKLCH	oklch(33.12% 0.08 251.2)
XYZ	xyz(3.5549, 3.6324, 10.8676)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10375D #5D3610

analogous

#105D5D #10375D #10115D

triadic

#10375D #5D1037 #375D10

tetradic

#10375D #5D105D #5D3610 #115D10

square

#10375D #5D105D #5D3610 #115D10

split-complementary

#10375D #5D1011 #5D5D10

monochromatic

#040F1A #071829 #10375D #195691 #2275C5

Accessibility & contrast

On white

12.16

#10375D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#10375D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10375D

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10375D	#FFFFFF	#000000	##FFFFFF
##10375D	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25395F

Deuteranopia (green-blind)

#19325C

Tritanopia (blue-blind)

#004045

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #10375d;
/* rgb */ color: rgb(16, 55, 93);
/* oklch */ color: oklch(33.1% 0.080 251.2);

Tailwind

colors: {
  custom: {
    50: '#5b6d8b',
    500: '#10375d',
    950: '#000000',
  },
}

SCSS

$custom: #10375d;
$custom-light: #5b6d8b;
$custom-dark: #000000;

JSON

{
  "hex": "#10375d",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 93
  },
  "hsl": {
    "h": 209.61,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.33115,
    "c": 0.07996,
    "h": 251.2
  },
  "luminance": 0.03633
}

Semantic roles & 50–950 ramp

primary

#10375D

secondary

#966433

accent

#933AED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #10375D

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

Preview Lab → · Contrast checker → · Palette generator →