#153A4A#153A4A

#153A4A is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.0% C 0.050 H 229.5°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX#153A4A
RGBrgb(21, 58, 74)
HSLhsl(198, 56%, 19%)
HSVhsv(198, 72%, 29%)
CMYKcmyk(71.6%, 21.6%, 0%, 71%)
CIE-LABlab(22.58, -7.28, -13.70)
CIE-LCHlch(22.58, 15.51, 242.01°)
OKLaboklab(32.95% -0.0327 -0.0383)
OKLCHoklch(32.95% 0.05 229.5)
XYZxyz(3.0579, 3.6796, 7.0263)
Luminance0.0368 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153A4A #4A2515
analogous
#154A3F #153A4A #151F4A
triadic
#153A4A #4A153A #3A4A15
tetradic
#153A4A #3F154A #4A2515 #1F4A15
square
#153A4A #3F154A #4A2515 #1F4A15
split-complementary
#153A4A #4A151F #4A3F15
monochromatic
#071318 #07151A #153A4A #235F7A #3085A9

Accessibility & contrast

On white

12.10
#153A4A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.74
#153A4A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A4A
12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153A4A#FFFFFF#000000##FFFFFF
##153A4A1.0012.101.7412.10
#FFFFFF12.101.0021.001.00
#0000001.7421.001.0021.00
##FFFFFF12.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#32394B
Deuteranopia (green-blind)
#2A344A
Tritanopia (blue-blind)
#003E3F
Achromatopsia (no color)
#363636

Design tokens & code

CSS
--color: #153a4a;
/* rgb */ color: rgb(21, 58, 74);
/* oklch */ color: oklch(33.0% 0.050 229.5);
Tailwind
colors: {
  custom: {
    50: '#59707c',
    500: '#153a4a',
    950: '#000000',
  },
}
SCSS
$custom: #153a4a;
$custom-light: #59707c;
$custom-dark: #000000;
JSON
{
  "hex": "#153a4a",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 74
  },
  "hsl": {
    "h": 198.113,
    "s": 55.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.32954,
    "c": 0.05037,
    "h": 229.5
  },
  "luminance": 0.0368
}

Semantic roles & 50–950 ramp

primary
#153A4A
secondary
#824F39
accent
#7649DF
background
#F5F6F7
surface
#E9ECEE
border
#C5C7C9
text
#040709
muted
#797A7B

Preview Lab

Preview with #153A4A

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

Preview Lab → · Contrast checker → · Palette generator →

#153A4A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva