#15178D#15178D

#15178D is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.183 H 269.1°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX#15178D
RGBrgb(21, 23, 141)
HSLhsl(239, 74%, 32%)
HSVhsv(239, 85%, 55%)
CMYKcmyk(85.1%, 83.7%, 0%, 44.7%)
CIE-LABlab(18.78, 42.57, -63.20)
CIE-LCHlch(18.78, 76.20, 303.96°)
OKLaboklab(31.83% -0.003 -0.183)
OKLCHoklch(31.83% 0.183 269.1)
XYZxyz(5.4217, 2.6947, 25.4285)
Luminance0.0270 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15178D #8D8B15
analogous
#15538D #15178D #4F158D
triadic
#15178D #8D1517 #178D15
tetradic
#15178D #8D1553 #8D8B15 #158D4F
square
#15178D #8D1553 #8D8B15 #158D4F
split-complementary
#15178D #8D4F15 #538D15
monochromatic
#050622 #0D0E58 #15178D #1D20C2 #3B3DE2

Accessibility & contrast

On white

13.65
#15178D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.54
#15178D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15178D
13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15178D#FFFFFF#000000##FFFFFF
##15178D1.0013.651.5413.65
#FFFFFF13.651.0021.001.00
#0000001.5421.001.0021.00
##FFFFFF13.651.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003490
Deuteranopia (green-blind)
#00278B
Tritanopia (blue-blind)
#003D53
Achromatopsia (no color)
#2E2E2E

Design tokens & code

CSS
--color: #15178d;
/* rgb */ color: rgb(21, 23, 141);
/* oklch */ color: oklch(31.8% 0.183 269.1);
Tailwind
colors: {
  custom: {
    50: '#6d57b0',
    500: '#15178d',
    950: '#000000',
  },
}
SCSS
$custom: #15178d;
$custom-light: #6d57b0;
$custom-dark: #000000;
JSON
{
  "hex": "#15178d",
  "rgb": {
    "r": 21,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 239,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.31827,
    "c": 0.18304,
    "h": 269.1
  },
  "luminance": 0.02695
}

Semantic roles & 50–950 ramp

primary
#15178D
secondary
#C1BF3D
accent
#EE37F1
background
#F7F5FB
surface
#EDE9F6
border
#C8C5D0
text
#090311
muted
#7B7880

Preview Lab

Preview with #15178D

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

Preview Lab → · Contrast checker → · Palette generator →

#15178D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva