#153D81#153D81

#153D81 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.5% C 0.123 H 260.4°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX#153D81
RGBrgb(21, 61, 129)
HSLhsl(218, 72%, 29%)
HSVhsv(218, 84%, 51%)
CMYKcmyk(83.7%, 52.7%, 0%, 49.4%)
CIE-LABlab(26.96, 13.22, -42.26)
CIE-LCHlch(26.96, 44.28, 287.36°)
OKLaboklab(37.48% -0.0206 -0.1217)
OKLCHoklch(37.48% 0.123 260.4)
XYZxyz(5.9390, 5.0812, 21.4324)
Luminance0.0508 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153D81 #815915
analogous
#157381 #153D81 #231581
triadic
#153D81 #81153D #3D8115
tetradic
#153D81 #811573 #815915 #158123
square
#153D81 #811573 #815915 #158123
split-complementary
#153D81 #812315 #738115
monochromatic
#040C1A #0C244C #153D81 #1E56B6 #3372DE

Accessibility & contrast

On white

10.41
#153D81 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.02
#153D81 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D81
10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153D81#FFFFFF#000000##FFFFFF
##153D811.0010.412.0210.41
#FFFFFF10.411.0021.001.00
#0000002.0221.001.0021.00
##FFFFFF10.411.0021.001.00

Color blindness preview

Protanopia (red-blind)
#104583
Deuteranopia (green-blind)
#003B80
Tritanopia (blue-blind)
#004E59
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #153d81;
/* rgb */ color: rgb(21, 61, 129);
/* oklch */ color: oklch(37.5% 0.123 260.4);
Tailwind
colors: {
  custom: {
    50: '#6671a6',
    500: '#153d81',
    950: '#000000',
  },
}
SCSS
$custom: #153d81;
$custom-light: #6671a6;
$custom-dark: #000000;
JSON
{
  "hex": "#153d81",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 129
  },
  "hsl": {
    "h": 217.778,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37475,
    "c": 0.12346,
    "h": 260.4
  },
  "luminance": 0.05082
}

Semantic roles & 50–950 ramp

primary
#153D81
secondary
#B6893C
accent
#AB39EF
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #153D81

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

Preview Lab → · Contrast checker → · Palette generator →

#153D81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva