#423A71#423A71

#423A71 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.5% C 0.091 H 288.0°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#423A71
RGB	rgb(66, 58, 113)
HSL	hsl(249, 32%, 34%)
HSV	hsv(249, 49%, 44%)
CMYK	cmyk(41.6%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(27.78, 18.24, -30.72)
CIE-LCH	lch(27.78, 35.72, 300.70°)
OKLab	oklab(38.47% 0.0282 -0.0868)
OKLCH	oklch(38.47% 0.091 288)
XYZ	xyz(6.7396, 5.3764, 16.3022)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423A71 #69713A

analogous

#3A4D71 #423A71 #5D3A71

triadic

#423A71 #71423A #3A7142

tetradic

#423A71 #713A4D #69713A #3A715D

square

#423A71 #713A4D #69713A #3A715D

split-complementary

#423A71 #715D3A #4D713A

monochromatic

#131020 #2A2549 #423A71 #5A4F99 #7A70B6

Accessibility & contrast

On white

10.12

#423A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#423A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A71

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423A71	#FFFFFF	#000000	##FFFFFF
##423A71	1.00	10.12	2.08	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264373

Deuteranopia (green-blind)

#254070

Tritanopia (blue-blind)

#354550

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #423a71;
/* rgb */ color: rgb(66, 58, 113);
/* oklch */ color: oklch(38.5% 0.091 288.0);

Tailwind

colors: {
  custom: {
    50: '#79709a',
    500: '#423a71',
    950: '#000000',
  },
}

SCSS

$custom: #423a71;
$custom-light: #79709a;
$custom-dark: #000000;

JSON

{
  "hex": "#423a71",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 248.727,
    "s": 32.164,
    "l": 33.529
  },
  "oklch": {
    "l": 0.3847,
    "c": 0.09127,
    "h": 288
  },
  "luminance": 0.05377
}

Semantic roles & 50–950 ramp

primary

#423A71

secondary

#979F68

accent

#C85FB9

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #423A71

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

Preview Lab → · Contrast checker → · Palette generator →