#153D7C#153D7C

#153D7C is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.116 H 259.4°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX#153D7C
RGBrgb(21, 61, 124)
HSLhsl(217, 71%, 28%)
HSVhsv(217, 83%, 49%)
CMYKcmyk(83.1%, 50.8%, 0%, 51.4%)
CIE-LABlab(26.60, 11.13, -39.72)
CIE-LCHlch(26.60, 41.25, 285.65°)
OKLaboklab(37.08% -0.0213 -0.1143)
OKLCHoklch(37.08% 0.116 259.4)
XYZxyz(5.6148, 4.9515, 19.7247)
Luminance0.0495 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153D7C #7C5415
analogous
#15707C #153D7C #20157C
triadic
#153D7C #7C153D #3D7C15
tetradic
#153D7C #7C1570 #7C5415 #157C20
square
#153D7C #7C1570 #7C5415 #157C20
split-complementary
#153D7C #7C2015 #707C15
monochromatic
#040D1A #0C2348 #153D7C #1E57B0 #3072DC

Accessibility & contrast

On white

10.55
#153D7C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.99
#153D7C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7C
10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153D7C#FFFFFF#000000##FFFFFF
##153D7C1.0010.551.9910.55
#FFFFFF10.551.0021.001.00
#0000001.9921.001.0021.00
##FFFFFF10.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#18447E
Deuteranopia (green-blind)
#003B7B
Tritanopia (blue-blind)
#004C56
Achromatopsia (no color)
#3F3F3F

Design tokens & code

CSS
--color: #153d7c;
/* rgb */ color: rgb(21, 61, 124);
/* oklch */ color: oklch(37.1% 0.116 259.4);
Tailwind
colors: {
  custom: {
    50: '#6571a2',
    500: '#153d7c',
    950: '#000000',
  },
}
SCSS
$custom: #153d7c;
$custom-light: #6571a2;
$custom-dark: #000000;
JSON
{
  "hex": "#153d7c",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 216.699,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37075,
    "c": 0.11624,
    "h": 259.4
  },
  "luminance": 0.04952
}

Semantic roles & 50–950 ramp

primary
#153D7C
secondary
#B1843C
accent
#A83AEE
background
#F6F6FA
surface
#EBECF3
border
#C6C7CD
text
#06070F
muted
#7A7A7F

Preview Lab

Preview with #153D7C

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

Preview Lab → · Contrast checker → · Palette generator →

#153D7C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva