#0A3739#0A3739

#0A3739 is a dark, muted teal. Relative luminance 0.031; OKLCH L 30.9% C 0.047 H 199.4°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX#0A3739
RGBrgb(10, 55, 57)
HSLhsl(183, 70%, 13%)
HSVhsv(183, 82%, 22%)
CMYKcmyk(82.5%, 3.5%, 0%, 77.6%)
CIE-LABlab(20.41, -13.80, -5.59)
CIE-LCHlch(20.41, 14.90, 202.06°)
OKLaboklab(30.86% -0.044 -0.0155)
OKLCHoklch(30.86% 0.047 199.4)
XYZxyz(2.2296, 3.0921, 4.3494)
Luminance0.0309 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0A3739 #390C0A
analogous
#0A3923 #0A3739 #0A1F39
triadic
#0A3739 #390A37 #37390A
tetradic
#0A3739 #230A39 #390C0A #1F390A
square
#0A3739 #230A39 #390C0A #1F390A
split-complementary
#0A3739 #390A1F #39230A
monochromatic
#05191A #05191A #0A3739 #13696D #1C9BA1

Accessibility & contrast

On white

12.98
#0A3739 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.62
#0A3739 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3739
12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0A3739#FFFFFF#000000##FFFFFF
##0A37391.0012.981.6212.98
#FFFFFF12.981.0021.001.00
#0000001.6221.001.0021.00
##FFFFFF12.981.0021.001.00

Color blindness preview

Protanopia (red-blind)
#323439
Deuteranopia (green-blind)
#2B2F39
Tritanopia (blue-blind)
#003937
Achromatopsia (no color)
#313131

Design tokens & code

CSS
--color: #0a3739;
/* rgb */ color: rgb(10, 55, 57);
/* oklch */ color: oklch(30.9% 0.047 199.4);
Tailwind
colors: {
  custom: {
    50: '#526e6f',
    500: '#0a3739',
    950: '#000000',
  },
}
SCSS
$custom: #0a3739;
$custom-light: #526e6f;
$custom-dark: #000000;
JSON
{
  "hex": "#0a3739",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 182.553,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.30864,
    "c": 0.04671,
    "h": 199.4
  },
  "luminance": 0.03092
}

Semantic roles & 50–950 ramp

primary
#0A3739
secondary
#762C28
accent
#423BED
background
#F4F6F6
surface
#E7EBEC
border
#C3C6C7
text
#030707
muted
#787A7A

Preview Lab

Preview with #0A3739

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

Preview Lab → · Contrast checker → · Palette generator →

#0A3739 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva