#043138#043138

#043138 is a dark, muted teal. Relative luminance 0.025; OKLCH L 28.8% C 0.047 H 210.7°. Best body text is #FFFFFF at 13.99:1 contrast (WCAG AA passes).

Color values

HEX#043138
RGBrgb(4, 49, 56)
HSLhsl(188, 87%, 12%)
HSVhsv(188, 93%, 22%)
CMYKcmyk(92.9%, 12.5%, 0%, 78%)
CIE-LABlab(17.95, -11.57, -8.64)
CIE-LCHlch(17.95, 14.44, 216.76°)
OKLaboklab(28.82% -0.0406 -0.0241)
OKLCHoklch(28.82% 0.047 210.7)
XYZxyz(1.8619, 2.5077, 4.1265)
Luminance0.0251 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#043138 #380B04
analogous
#043825 #043138 #041738
triadic
#043138 #380431 #313804
tetradic
#043138 #250438 #380B04 #173804
square
#043138 #250438 #380B04 #173804
split-complementary
#043138 #380417 #382504
monochromatic
#02191D #02191D #043138 #086371 #0C95AA

Accessibility & contrast

On white

13.99
#043138 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.50
#043138 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043138
13.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##043138#FFFFFF#000000##FFFFFF
##0431381.0013.991.5013.99
#FFFFFF13.991.0021.001.00
#0000001.5021.001.0021.00
##FFFFFF13.991.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B2F38
Deuteranopia (green-blind)
#242A38
Tritanopia (blue-blind)
#003433
Achromatopsia (no color)
#2C2C2C

Design tokens & code

CSS
--color: #043138;
/* rgb */ color: rgb(4, 49, 56);
/* oklch */ color: oklch(28.8% 0.047 210.7);
Tailwind
colors: {
  custom: {
    50: '#4f696e',
    500: '#043138',
    950: '#000000',
  },
}
SCSS
$custom: #043138;
$custom-light: #4f696e;
$custom-dark: #000000;
JSON
{
  "hex": "#043138",
  "rgb": {
    "r": 4,
    "g": 49,
    "b": 56
  },
  "hsl": {
    "h": 188.077,
    "s": 86.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.28817,
    "c": 0.04722,
    "h": 210.7
  },
  "luminance": 0.02508
}

Semantic roles & 50–950 ramp

primary
#043138
secondary
#7A2A1E
accent
#472BFD
background
#F4F6F6
surface
#E7EBEB
border
#C3C6C6
text
#020607
muted
#787A7A

Preview Lab

Preview with #043138

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

Preview Lab → · Contrast checker → · Palette generator →

#043138 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva