#153F7D#153F7D

#153F7D is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.115 H 258.6°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX#153F7D
RGBrgb(21, 63, 125)
HSLhsl(216, 71%, 29%)
HSVhsv(216, 83%, 49%)
CMYKcmyk(83.2%, 49.6%, 0%, 51%)
CIE-LABlab(27.28, 10.14, -39.25)
CIE-LCHlch(27.28, 40.54, 284.49°)
OKLaboklab(37.62% -0.0228 -0.1128)
OKLCHoklch(37.62% 0.115 258.6)
XYZxyz(5.7871, 5.1944, 20.0957)
Luminance0.0520 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153F7D #7D5315
analogous
#15737D #153F7D #1F157D
triadic
#153F7D #7D153F #3F7D15
tetradic
#153F7D #7D1573 #7D5315 #157D1F
square
#153F7D #7D1573 #7D5315 #157D1F
split-complementary
#153F7D #7D1F15 #737D15
monochromatic
#040D1A #0C2549 #153F7D #1E59B1 #3076DC

Accessibility & contrast

On white

10.30
#153F7D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#153F7D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F7D
10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153F7D#FFFFFF#000000##FFFFFF
##153F7D1.0010.302.0410.30
#FFFFFF10.301.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.301.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1C457F
Deuteranopia (green-blind)
#003C7C
Tritanopia (blue-blind)
#004E58
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #153f7d;
/* rgb */ color: rgb(21, 63, 125);
/* oklch */ color: oklch(37.6% 0.115 258.6);
Tailwind
colors: {
  custom: {
    50: '#6573a3',
    500: '#153f7d',
    950: '#000000',
  },
}
SCSS
$custom: #153f7d;
$custom-light: #6573a3;
$custom-dark: #000000;
JSON
{
  "hex": "#153f7d",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 215.769,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37624,
    "c": 0.1151,
    "h": 258.6
  },
  "luminance": 0.05195
}

Semantic roles & 50–950 ramp

primary
#153F7D
secondary
#B2823C
accent
#A53AEE
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#06080F
muted
#7A7B7F

Preview Lab

Preview with #153F7D

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

Preview Lab → · Contrast checker → · Palette generator →

#153F7D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva