#423978#423978

#423978 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.7% C 0.104 H 287.1°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#423978
RGB	rgb(66, 57, 120)
HSL	hsl(249, 36%, 35%)
HSV	hsv(249, 53%, 47%)
CMYK	cmyk(45%, 52.5%, 0%, 52.9%)
CIE-LAB	lab(27.95, 21.11, -34.87)
CIE-LCH	lch(27.95, 40.77, 301.19°)
OKLab	oklab(38.74% 0.0304 -0.099)
OKLCH	oklch(38.74% 0.104 287.1)
XYZ	xyz(7.0991, 5.4403, 18.4417)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423978 #6F7839

analogous

#395078 #423978 #613978

triadic

#423978 #784239 #397842

tetradic

#423978 #783950 #6F7839 #397861

square

#423978 #783950 #6F7839 #397861

split-complementary

#423978 #786139 #507839

monochromatic

#141225 #2B254F #423978 #594DA1 #7B70BB

Accessibility & contrast

On white

10.06

#423978 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#423978 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423978

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423978	#FFFFFF	#000000	##FFFFFF
##423978	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447A

Deuteranopia (green-blind)

#1D4077

Tritanopia (blue-blind)

#324653

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #423978;
/* rgb */ color: rgb(66, 57, 120);
/* oklch */ color: oklch(38.7% 0.104 287.1);

Tailwind

colors: {
  custom: {
    50: '#7a6f9f',
    500: '#423978',
    950: '#000000',
  },
}

SCSS

$custom: #423978;
$custom-light: #7a6f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#423978",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 120
  },
  "hsl": {
    "h": 248.571,
    "s": 35.593,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38743,
    "c": 0.10357,
    "h": 287.1
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#423978

secondary

#9CA468

accent

#CC5CBC

background

#F7F6F9

surface

#EEECF2

border

#C9C7CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #423978

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

Preview Lab → · Contrast checker → · Palette generator →