#423A89#423A89

#423A89 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.127 H 283.7°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX#423A89
RGBrgb(66, 58, 137)
HSLhsl(246, 41%, 38%)
HSVhsv(246, 58%, 54%)
CMYKcmyk(51.8%, 57.7%, 0%, 46.3%)
CIE-LABlab(29.39, 25.96, -43.20)
CIE-LCHlch(29.39, 50.40, 301.00°)
OKLaboklab(40.19% 0.03 -0.1235)
OKLCHoklch(40.19% 0.127 283.7)
XYZxyz(8.2738, 5.9901, 24.3823)
Luminance0.0599 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423A89 #81893A
analogous
#3A5989 #423A89 #693A89
triadic
#423A89 #89423A #3A8942
tetradic
#423A89 #893A59 #81893A #3A8969
square
#423A89 #893A59 #81893A #3A8969
split-complementary
#423A89 #89693A #59893A
monochromatic
#191633 #2D285E #423A89 #574DB4 #8078C6

Accessibility & contrast

On white

9.55
#423A89 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.20
#423A89 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A89
9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423A89#FFFFFF#000000##FFFFFF
##423A891.009.552.209.55
#FFFFFF9.551.0021.001.00
#0000002.2021.001.0021.00
##FFFFFF9.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#05488C
Deuteranopia (green-blind)
#004387
Tritanopia (blue-blind)
#274C5B
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #423a89;
/* rgb */ color: rgb(66, 58, 137);
/* oklch */ color: oklch(40.2% 0.127 283.7);
Tailwind
colors: {
  custom: {
    50: '#7c70ac',
    500: '#423a89',
    950: '#000000',
  },
}
SCSS
$custom: #423a89;
$custom-light: #7c70ac;
$custom-dark: #000000;
JSON
{
  "hex": "#423a89",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 137
  },
  "hsl": {
    "h": 246.076,
    "s": 40.513,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40187,
    "c": 0.12706,
    "h": 283.7
  },
  "luminance": 0.05991
}

Semantic roles & 50–950 ramp

primary
#423A89
secondary
#A9AF70
accent
#D057C4
background
#F7F6FA
surface
#EEECF4
border
#C9C7CE
text
#0A0710
muted
#7C7A7F

Preview Lab

Preview with #423A89

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

Preview Lab → · Contrast checker → · Palette generator →

#423A89 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva