#153B7D#153B7D

#153B7D is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.7% C 0.120 H 260.6°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX#153B7D
RGBrgb(21, 59, 125)
HSLhsl(218, 71%, 29%)
HSVhsv(218, 83%, 49%)
CMYKcmyk(83.2%, 52.8%, 0%, 51%)
CIE-LABlab(26.06, 12.95, -41.22)
CIE-LCHlch(26.06, 43.20, 287.45°)
OKLaboklab(36.69% -0.0196 -0.1187)
OKLCHoklch(36.69% 0.12 260.6)
XYZxyz(5.5736, 4.7674, 20.0245)
Luminance0.0477 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153B7D #7D5715
analogous
#156F7D #153B7D #23157D
triadic
#153B7D #7D153B #3B7D15
tetradic
#153B7D #7D156F #7D5715 #157D23
square
#153B7D #7D156F #7D5715 #157D23
split-complementary
#153B7D #7D2315 #6F7D15
monochromatic
#040C1A #0C2249 #153B7D #1E54B1 #306FDC

Accessibility & contrast

On white

10.75
#153B7D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.95
#153B7D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B7D
10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153B7D#FFFFFF#000000##FFFFFF
##153B7D1.0010.751.9510.75
#FFFFFF10.751.0021.001.00
#0000001.9521.001.0021.00
##FFFFFF10.751.0021.001.00

Color blindness preview

Protanopia (red-blind)
#10437F
Deuteranopia (green-blind)
#00397C
Tritanopia (blue-blind)
#004B56
Achromatopsia (no color)
#3E3E3E

Design tokens & code

CSS
--color: #153b7d;
/* rgb */ color: rgb(21, 59, 125);
/* oklch */ color: oklch(36.7% 0.120 260.6);
Tailwind
colors: {
  custom: {
    50: '#6570a3',
    500: '#153b7d',
    950: '#000000',
  },
}
SCSS
$custom: #153b7d;
$custom-light: #6570a3;
$custom-dark: #000000;
JSON
{
  "hex": "#153b7d",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 125
  },
  "hsl": {
    "h": 218.077,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36689,
    "c": 0.12029,
    "h": 260.6
  },
  "luminance": 0.04768
}

Semantic roles & 50–950 ramp

primary
#153B7D
secondary
#B2873C
accent
#AC3AEE
background
#F6F6FA
surface
#EBECF4
border
#C6C7CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #153B7D

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

Preview Lab → · Contrast checker → · Palette generator →

#153B7D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva