#153B6B#153B6B

#153B6B is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.094 H 255.9°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX#153B6B
RGBrgb(21, 59, 107)
HSLhsl(213, 67%, 25%)
HSVhsv(213, 80%, 42%)
CMYKcmyk(80.4%, 44.9%, 0%, 58%)
CIE-LABlab(24.79, 5.41, -31.82)
CIE-LCHlch(24.79, 32.28, 279.64°)
OKLaboklab(35.3% -0.0229 -0.0911)
OKLCHoklch(35.3% 0.094 255.9)
XYZxyz(4.5261, 4.3484, 14.5078)
Luminance0.0435 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153B6B #6B4515
analogous
#15666B #153B6B #1A156B
triadic
#153B6B #6B153B #3B6B15
tetradic
#153B6B #6B1566 #6B4515 #156B1A
square
#153B6B #6B1566 #6B4515 #156B1A
split-complementary
#153B6B #6B1A15 #666B15
monochromatic
#050E1A #0B1F38 #153B6B #1F579E #2973D1

Accessibility & contrast

On white

11.23
#153B6B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.87
#153B6B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B6B
11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153B6B#FFFFFF#000000##FFFFFF
##153B6B1.0011.231.8711.23
#FFFFFF11.231.0021.001.00
#0000001.8721.001.0021.00
##FFFFFF11.231.0021.001.00

Color blindness preview

Protanopia (red-blind)
#233F6D
Deuteranopia (green-blind)
#14376A
Tritanopia (blue-blind)
#00464D
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #153b6b;
/* rgb */ color: rgb(21, 59, 107);
/* oklch */ color: oklch(35.3% 0.094 255.9);
Tailwind
colors: {
  custom: {
    50: '#607096',
    500: '#153b6b',
    950: '#000000',
  },
}
SCSS
$custom: #153b6b;
$custom-light: #607096;
$custom-dark: #000000;
JSON
{
  "hex": "#153b6b",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 107
  },
  "hsl": {
    "h": 213.488,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35304,
    "c": 0.09388,
    "h": 255.9
  },
  "luminance": 0.04349
}

Semantic roles & 50–950 ramp

primary
#153B6B
secondary
#A2743A
accent
#9E3EEA
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#05070D
muted
#7A7A7E

Preview Lab

Preview with #153B6B

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

Preview Lab → · Contrast checker → · Palette generator →

#153B6B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva