#153D7D#153D7D

#153D7D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.118 H 259.6°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX#153D7D
RGBrgb(21, 61, 125)
HSLhsl(217, 71%, 29%)
HSVhsv(217, 83%, 49%)
CMYKcmyk(83.2%, 51.2%, 0%, 51%)
CIE-LABlab(26.67, 11.54, -40.23)
CIE-LCHlch(26.67, 41.86, 286.01°)
OKLaboklab(37.15% -0.0212 -0.1158)
OKLCHoklch(37.15% 0.118 259.6)
XYZxyz(5.6783, 4.9769, 20.0594)
Luminance0.0498 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153D7D #7D5515
analogous
#15717D #153D7D #21157D
triadic
#153D7D #7D153D #3D7D15
tetradic
#153D7D #7D1571 #7D5515 #157D21
square
#153D7D #7D1571 #7D5515 #157D21
split-complementary
#153D7D #7D2115 #717D15
monochromatic
#040D1A #0C2349 #153D7D #1E57B1 #3072DC

Accessibility & contrast

On white

10.52
#153D7D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.00
#153D7D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7D
10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153D7D#FFFFFF#000000##FFFFFF
##153D7D1.0010.522.0010.52
#FFFFFF10.521.0021.001.00
#0000002.0021.001.0021.00
##FFFFFF10.521.0021.001.00

Color blindness preview

Protanopia (red-blind)
#16447F
Deuteranopia (green-blind)
#003B7C
Tritanopia (blue-blind)
#004C57
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #153d7d;
/* rgb */ color: rgb(21, 61, 125);
/* oklch */ color: oklch(37.2% 0.118 259.6);
Tailwind
colors: {
  custom: {
    50: '#6571a3',
    500: '#153d7d',
    950: '#000000',
  },
}
SCSS
$custom: #153d7d;
$custom-light: #6571a3;
$custom-dark: #000000;
JSON
{
  "hex": "#153d7d",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 125
  },
  "hsl": {
    "h": 216.923,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37154,
    "c": 0.11768,
    "h": 259.6
  },
  "luminance": 0.04978
}

Semantic roles & 50–950 ramp

primary
#153D7D
secondary
#B2853C
accent
#A93AEE
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#06070F
muted
#7A7A7F

Preview Lab

Preview with #153D7D

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

Preview Lab → · Contrast checker → · Palette generator →

#153D7D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva