#10374A#10374A

#10374A is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.9% C 0.055 H 233.5°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#10374A
RGB	rgb(16, 55, 74)
HSL	hsl(200, 64%, 18%)
HSV	hsv(200, 78%, 29%)
CMYK	cmyk(78.4%, 25.7%, 0%, 71%)
CIE-LAB	lab(21.34, -6.26, -15.63)
CIE-LCH	lch(21.34, 16.84, 248.16°)
OKLab	oklab(31.92% -0.0325 -0.0439)
OKLCH	oklch(31.92% 0.055 233.5)
XYZ	xyz(2.8154, 3.3366, 6.9729)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10374A #4A2310

analogous

#104A40 #10374A #101A4A

triadic

#10374A #4A1037 #374A10

tetradic

#10374A #40104A #4A2310 #1A4A10

square

#10374A #40104A #4A2310 #1A4A10

split-complementary

#10374A #4A101A #4A4010

monochromatic

#051319 #051319 #10374A #1B5C7C #2682AF

Accessibility & contrast

On white

12.59

#10374A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#10374A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10374A

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10374A	#FFFFFF	#000000	##FFFFFF
##10374A	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E364B

Deuteranopia (green-blind)

#26314A

Tritanopia (blue-blind)

#003C3D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #10374a;
/* rgb */ color: rgb(16, 55, 74);
/* oklch */ color: oklch(31.9% 0.055 233.5);

Tailwind

colors: {
  custom: {
    50: '#576d7c',
    500: '#10374a',
    950: '#000000',
  },
}

SCSS

$custom: #10374a;
$custom-light: #576d7c;
$custom-dark: #000000;

JSON

{
  "hex": "#10374a",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 74
  },
  "hsl": {
    "h": 199.655,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.31917,
    "c": 0.05465,
    "h": 233.5
  },
  "luminance": 0.03337
}

Semantic roles & 50–950 ramp

primary

#10374A

secondary

#844D32

accent

#7740E7

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #10374A

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

Preview Lab → · Contrast checker → · Palette generator →