#153B78#153B78

#153B78 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.113 H 259.6°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX#153B78
RGBrgb(21, 59, 120)
HSLhsl(217, 70%, 28%)
HSVhsv(217, 83%, 47%)
CMYKcmyk(82.5%, 50.8%, 0%, 52.9%)
CIE-LABlab(25.69, 10.86, -38.66)
CIE-LCHlch(25.69, 40.16, 285.69°)
OKLaboklab(36.29% -0.0203 -0.1112)
OKLCHoklch(36.29% 0.113 259.6)
XYZxyz(5.2622, 4.6428, 18.3845)
Luminance0.0464 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153B78 #785215
analogous
#156C78 #153B78 #211578
triadic
#153B78 #78153B #3B7815
tetradic
#153B78 #78156C #785215 #157821
square
#153B78 #78156C #785215 #157821
split-complementary
#153B78 #782115 #6C7815
monochromatic
#050D1A #0C2144 #153B78 #1E55AC #2D70DA

Accessibility & contrast

On white

10.89
#153B78 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.93
#153B78 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B78
10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153B78#FFFFFF#000000##FFFFFF
##153B781.0010.891.9310.89
#FFFFFF10.891.0021.001.00
#0000001.9321.001.0021.00
##FFFFFF10.891.0021.001.00

Color blindness preview

Protanopia (red-blind)
#17427A
Deuteranopia (green-blind)
#003977
Tritanopia (blue-blind)
#004A53
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #153b78;
/* rgb */ color: rgb(21, 59, 120);
/* oklch */ color: oklch(36.3% 0.113 259.6);
Tailwind
colors: {
  custom: {
    50: '#64709f',
    500: '#153b78',
    950: '#000000',
  },
}
SCSS
$custom: #153b78;
$custom-light: #64709f;
$custom-dark: #000000;
JSON
{
  "hex": "#153b78",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 216.97,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36288,
    "c": 0.11301,
    "h": 259.6
  },
  "luminance": 0.04643
}

Semantic roles & 50–950 ramp

primary
#153B78
secondary
#AE823B
accent
#A93BED
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E

Preview Lab

Preview with #153B78

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

Preview Lab → · Contrast checker → · Palette generator →

#153B78 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva