#423B79#423B79

#423B79 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.2% C 0.102 H 285.8°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#423B79
RGB	rgb(66, 59, 121)
HSL	hsl(247, 34%, 35%)
HSV	hsv(247, 51%, 47%)
CMYK	cmyk(45.5%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(28.55, 20.11, -34.54)
CIE-LCH	lch(28.55, 39.97, 300.21°)
OKLab	oklab(39.22% 0.0278 -0.098)
OKLCH	oklch(39.22% 0.102 285.8)
XYZ	xyz(7.2609, 5.6664, 18.7966)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423B79 #72793B

analogous

#3B5379 #423B79 #613B79

triadic

#423B79 #79423B #3B7942

tetradic

#423B79 #793B53 #72793B #3B7961

square

#423B79 #793B53 #72793B #3B7961

split-complementary

#423B79 #79613B #53793B

monochromatic

#151327 #2C2750 #423B79 #584FA2 #7C73BB

Accessibility & contrast

On white

9.84

#423B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#423B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423B79

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423B79	#FFFFFF	#000000	##FFFFFF
##423B79	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21457B

Deuteranopia (green-blind)

#1F4278

Tritanopia (blue-blind)

#314854

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #423b79;
/* rgb */ color: rgb(66, 59, 121);
/* oklch */ color: oklch(39.2% 0.102 285.8);

Tailwind

colors: {
  custom: {
    50: '#7a71a0',
    500: '#423b79',
    950: '#000000',
  },
}

SCSS

$custom: #423b79;
$custom-light: #7a71a0;
$custom-dark: #000000;

JSON

{
  "hex": "#423b79",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 246.774,
    "s": 34.444,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39215,
    "c": 0.10189,
    "h": 285.8
  },
  "luminance": 0.05667
}

Semantic roles & 50–950 ramp

primary

#423B79

secondary

#9EA56B

accent

#CB5DBE

background

#F7F6F9

surface

#EEECF2

border

#C9C7CC

text

#09070F

muted

#7B7A7E

Preview Lab

Preview with #423B79

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

Preview Lab → · Contrast checker → · Palette generator →