#423C66#423C66

#423C66 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.2% C 0.071 H 289.2°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#423C66
RGB	rgb(66, 60, 102)
HSL	hsl(249, 26%, 32%)
HSV	hsv(249, 41%, 40%)
CMYK	cmyk(35.3%, 41.2%, 0%, 60%)
CIE-LAB	lab(27.71, 13.53, -23.80)
CIE-LCH	lch(27.71, 27.38, 299.62°)
OKLab	oklab(38.21% 0.0232 -0.0666)
OKLCH	oklch(38.21% 0.071 289.2)
XYZ	xyz(6.2603, 5.3491, 13.2704)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423C66 #60663C

analogous

#3C4B66 #423C66 #573C66

triadic

#423C66 #66423C #3C6642

tetradic

#423C66 #663C4B #60663C #3C6657

square

#423C66 #663C4B #60663C #3C6657

split-complementary

#423C66 #66573C #4B663C

monochromatic

#100F19 #29253F #423C66 #5B538D #7971AB

Accessibility & contrast

On white

10.15

#423C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#423C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423C66

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423C66	#FFFFFF	#000000	##FFFFFF
##423C66	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4268

Deuteranopia (green-blind)

#2F4065

Tritanopia (blue-blind)

#39444C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #423c66;
/* rgb */ color: rgb(66, 60, 102);
/* oklch */ color: oklch(38.2% 0.071 289.2);

Tailwind

colors: {
  custom: {
    50: '#787192',
    500: '#423c66',
    950: '#000000',
  },
}

SCSS

$custom: #423c66;
$custom-light: #787192;
$custom-dark: #000000;

JSON

{
  "hex": "#423c66",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 102
  },
  "hsl": {
    "h": 248.571,
    "s": 25.926,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38207,
    "c": 0.07056,
    "h": 289.2
  },
  "luminance": 0.05349
}

Semantic roles & 50–950 ramp

primary

#423C66

secondary

#8F9668

accent

#C265B5

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#09070D

muted

#7B7A7D

Preview Lab

Preview with #423C66

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

Preview Lab → · Contrast checker → · Palette generator →