#153F7A#153F7A

#153F7A is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.111 H 257.8°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX#153F7A
RGBrgb(21, 63, 122)
HSLhsl(215, 71%, 28%)
HSVhsv(215, 83%, 48%)
CMYKcmyk(82.8%, 48.4%, 0%, 52.2%)
CIE-LABlab(27.07, 8.89, -37.70)
CIE-LCHlch(27.07, 38.73, 283.27°)
OKLaboklab(37.4% -0.0234 -0.1083)
OKLCHoklch(37.4% 0.111 257.8)
XYZxyz(5.5983, 5.1189, 19.1016)
Luminance0.0512 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153F7A #7A5015
analogous
#15717A #153F7A #1E157A
triadic
#153F7A #7A153F #3F7A15
tetradic
#153F7A #7A1571 #7A5015 #157A1E
square
#153F7A #7A1571 #7A5015 #157A1E
split-complementary
#153F7A #7A1E15 #717A15
monochromatic
#040D1A #0C2446 #153F7A #1E5AAE #2E76DB

Accessibility & contrast

On white

10.38
#153F7A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.02
#153F7A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F7A
10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153F7A#FFFFFF#000000##FFFFFF
##153F7A1.0010.382.0210.38
#FFFFFF10.381.0021.001.00
#0000002.0221.001.0021.00
##FFFFFF10.381.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1F457C
Deuteranopia (green-blind)
#043C79
Tritanopia (blue-blind)
#004D56
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #153f7a;
/* rgb */ color: rgb(21, 63, 122);
/* oklch */ color: oklch(37.4% 0.111 257.8);
Tailwind
colors: {
  custom: {
    50: '#6473a1',
    500: '#153f7a',
    950: '#000000',
  },
}
SCSS
$custom: #153f7a;
$custom-light: #6473a1;
$custom-dark: #000000;
JSON
{
  "hex": "#153f7a",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 122
  },
  "hsl": {
    "h": 215.05,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37395,
    "c": 0.11076,
    "h": 257.8
  },
  "luminance": 0.0512
}

Semantic roles & 50–950 ramp

primary
#153F7A
secondary
#AF7F3B
accent
#A33AED
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06080F
muted
#7A7B7E

Preview Lab

Preview with #153F7A

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

Preview Lab → · Contrast checker → · Palette generator →

#153F7A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva