#423299#423299

#423299 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.160 H 283.6°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#423299
RGB	rgb(66, 50, 153)
HSL	hsl(249, 51%, 40%)
HSV	hsv(249, 67%, 60%)
CMYK	cmyk(56.9%, 67.3%, 0%, 40%)
CIE-LAB	lab(28.74, 36.17, -54.08)
CIE-LCH	lch(28.74, 65.07, 303.78°)
OKLab	oklab(40.11% 0.0376 -0.1555)
OKLCH	oklch(40.11% 0.16 283.6)
XYZ	xyz(9.1354, 5.7388, 30.7571)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423299 #899932

analogous

#325699 #423299 #753299

triadic

#423299 #994232 #329942

tetradic

#423299 #993256 #899932 #329975

square

#423299 #993256 #899932 #329975

split-complementary

#423299 #997532 #569932

monochromatic

#1A143D #2E236B #423299 #5946C2 #8274D2

Accessibility & contrast

On white

9.78

#423299 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#423299 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423299

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423299	#FFFFFF	#000000	##FFFFFF
##423299	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#184C61

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #423299;
/* rgb */ color: rgb(66, 50, 153);
/* oklch */ color: oklch(40.1% 0.160 283.6);

Tailwind

colors: {
  custom: {
    50: '#806bb8',
    500: '#423299',
    950: '#000000',
  },
}

SCSS

$custom: #423299;
$custom-light: #806bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#423299",
  "rgb": {
    "r": 66,
    "g": 50,
    "b": 153
  },
  "hsl": {
    "h": 249.32,
    "s": 50.739,
    "l": 39.804
  },
  "oklch": {
    "l": 0.40114,
    "c": 0.15997,
    "h": 283.6
  },
  "luminance": 0.05739
}

Semantic roles & 50–950 ramp

primary

#423299

secondary

#AEBA6D

accent

#DA4EC4

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #423299

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

Preview Lab → · Contrast checker → · Palette generator →