#153B8D#153B8D

#153B8D is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.143 H 262.8°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX#153B8D
RGBrgb(21, 59, 141)
HSLhsl(221, 74%, 32%)
HSVhsv(221, 85%, 55%)
CMYKcmyk(85.1%, 58.2%, 0%, 44.7%)
CIE-LABlab(27.32, 19.59, -49.14)
CIE-LCHlch(27.32, 52.90, 291.74°)
OKLaboklab(38.05% -0.0179 -0.142)
OKLCHoklch(38.05% 0.143 262.8)
XYZxyz(6.6792, 5.2096, 25.8477)
Luminance0.0521 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153B8D #8D6715
analogous
#15778D #153B8D #2B158D
triadic
#153B8D #8D153B #3B8D15
tetradic
#153B8D #8D1577 #8D6715 #158D2B
square
#153B8D #8D1577 #8D6715 #158D2B
split-complementary
#153B8D #8D2B15 #778D15
monochromatic
#050E22 #0D2558 #153B8D #1D51C2 #3B70E2

Accessibility & contrast

On white

10.28
#153B8D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#153B8D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B8D
10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153B8D#FFFFFF#000000##FFFFFF
##153B8D1.0010.282.0410.28
#FFFFFF10.281.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.281.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004690
Deuteranopia (green-blind)
#003B8B
Tritanopia (blue-blind)
#00505E
Achromatopsia (no color)
#414141

Design tokens & code

CSS
--color: #153b8d;
/* rgb */ color: rgb(21, 59, 141);
/* oklch */ color: oklch(38.0% 0.143 262.8);
Tailwind
colors: {
  custom: {
    50: '#6a70af',
    500: '#153b8d',
    950: '#000000',
  },
}
SCSS
$custom: #153b8d;
$custom-light: #6a70af;
$custom-dark: #000000;
JSON
{
  "hex": "#153b8d",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 221,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38045,
    "c": 0.14312,
    "h": 262.8
  },
  "luminance": 0.0521
}

Semantic roles & 50–950 ramp

primary
#153B8D
secondary
#C1973D
accent
#B637F1
background
#F6F6FA
surface
#ECECF5
border
#C7C7CF
text
#080710
muted
#7A7A7F

Preview Lab

Preview with #153B8D

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

Preview Lab → · Contrast checker → · Palette generator →

#153B8D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva