#153B8C#153B8C

#153B8C is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.142 H 262.7°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX#153B8C
RGBrgb(21, 59, 140)
HSLhsl(221, 74%, 32%)
HSVhsv(221, 85%, 55%)
CMYKcmyk(85%, 57.9%, 0%, 45.1%)
CIE-LABlab(27.24, 19.18, -48.66)
CIE-LCHlch(27.24, 52.30, 291.51°)
OKLaboklab(37.96% -0.018 -0.1406)
OKLCHoklch(37.96% 0.142 262.7)
XYZxyz(6.6051, 5.1800, 25.4576)
Luminance0.0518 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153B8C #8C6615
analogous
#15778C #153B8C #2A158C
triadic
#153B8C #8C153B #3B8C15
tetradic
#153B8C #8C1577 #8C6615 #158C2A
square
#153B8C #8C1577 #8C6615 #158C2A
split-complementary
#153B8C #8C2A15 #778C15
monochromatic
#050E22 #0D2557 #153B8C #1D51C1 #3A6FE1

Accessibility & contrast

On white

10.31
#153B8C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#153B8C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B8C
10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153B8C#FFFFFF#000000##FFFFFF
##153B8C1.0010.312.0410.31
#FFFFFF10.311.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.311.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00468F
Deuteranopia (green-blind)
#003B8A
Tritanopia (blue-blind)
#004F5D
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #153b8c;
/* rgb */ color: rgb(21, 59, 140);
/* oklch */ color: oklch(38.0% 0.142 262.7);
Tailwind
colors: {
  custom: {
    50: '#6970ae',
    500: '#153b8c',
    950: '#000000',
  },
}
SCSS
$custom: #153b8c;
$custom-light: #6970ae;
$custom-dark: #000000;
JSON
{
  "hex": "#153b8c",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 140
  },
  "hsl": {
    "h": 220.84,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37957,
    "c": 0.14172,
    "h": 262.7
  },
  "luminance": 0.05181
}

Semantic roles & 50–950 ramp

primary
#153B8C
secondary
#C0963D
accent
#B537F1
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#070710
muted
#7A7A7F

Preview Lab

Preview with #153B8C

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

Preview Lab → · Contrast checker → · Palette generator →

#153B8C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva