#10374B#10374B

#10374B is a dark, muted cyan. Relative luminance 0.034; OKLCH L 32.0% C 0.056 H 234.9°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX#10374B
RGBrgb(16, 55, 75)
HSLhsl(200, 65%, 18%)
HSVhsv(200, 79%, 29%)
CMYKcmyk(78.7%, 26.7%, 0%, 70.6%)
CIE-LABlab(21.40, -5.86, -16.22)
CIE-LCHlch(21.40, 17.25, 250.13°)
OKLaboklab(31.97% -0.0321 -0.0456)
OKLCHoklch(31.97% 0.056 234.9)
XYZxyz(2.8494, 3.3502, 7.1517)
Luminance0.0335 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#10374B #4B2410
analogous
#104B41 #10374B #10194B
triadic
#10374B #4B1037 #374B10
tetradic
#10374B #41104B #4B2410 #194B10
square
#10374B #41104B #4B2410 #194B10
split-complementary
#10374B #4B1019 #4B4110
monochromatic
#051219 #051219 #10374B #1B5C7D #2681B0

Accessibility & contrast

On white

12.57
#10374B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.67
#10374B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10374B
12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##10374B#FFFFFF#000000##FFFFFF
##10374B1.0012.571.6712.57
#FFFFFF12.571.0021.001.00
#0000001.6721.001.0021.00
##FFFFFF12.571.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2D374C
Deuteranopia (green-blind)
#25314B
Tritanopia (blue-blind)
#003C3E
Achromatopsia (no color)
#333333

Design tokens & code

CSS
--color: #10374b;
/* rgb */ color: rgb(16, 55, 75);
/* oklch */ color: oklch(32.0% 0.056 234.9);
Tailwind
colors: {
  custom: {
    50: '#576d7d',
    500: '#10374b',
    950: '#000000',
  },
}
SCSS
$custom: #10374b;
$custom-light: #576d7d;
$custom-dark: #000000;
JSON
{
  "hex": "#10374b",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 200.339,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.31974,
    "c": 0.05578,
    "h": 234.9
  },
  "luminance": 0.03351
}

Semantic roles & 50–950 ramp

primary
#10374B
secondary
#854E32
accent
#7940E8
background
#F5F6F7
surface
#E9EBEE
border
#C5C6C9
text
#040709
muted
#797A7B

Preview Lab

Preview with #10374B

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

Preview Lab → · Contrast checker → · Palette generator →

#10374B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva