#423B87#423B87

#423B87 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.123 H 283.6°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#423B87
RGB	rgb(66, 59, 135)
HSL	hsl(246, 39%, 38%)
HSV	hsv(246, 56%, 53%)
CMYK	cmyk(51.1%, 56.3%, 0%, 47.1%)
CIE-LAB	lab(29.50, 24.65, -41.77)
CIE-LCH	lch(29.50, 48.51, 300.55°)
OKLab	oklab(40.23% 0.0288 -0.1193)
OKLCH	oklch(40.23% 0.123 283.6)
XYZ	xyz(8.1826, 6.0350, 23.6507)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423B87 #80873B

analogous

#3B5A87 #423B87 #683B87

triadic

#423B87 #87423B #3B8742

tetradic

#423B87 #873B5A #80873B #3B8768

square

#423B87 #873B5A #80873B #3B8768

split-complementary

#423B87 #87683B #5A873B

monochromatic

#181632 #2D285C #423B87 #574EB2 #7F78C4

Accessibility & contrast

On white

9.52

#423B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#423B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423B87

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423B87	#FFFFFF	#000000	##FFFFFF
##423B87	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F488A

Deuteranopia (green-blind)

#084385

Tritanopia (blue-blind)

#294C5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #423b87;
/* rgb */ color: rgb(66, 59, 135);
/* oklch */ color: oklch(40.2% 0.123 283.6);

Tailwind

colors: {
  custom: {
    50: '#7c71aa',
    500: '#423b87',
    950: '#000000',
  },
}

SCSS

$custom: #423b87;
$custom-light: #7c71aa;
$custom-dark: #000000;

JSON

{
  "hex": "#423b87",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 135
  },
  "hsl": {
    "h": 245.526,
    "s": 39.175,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40225,
    "c": 0.1227,
    "h": 283.6
  },
  "luminance": 0.06035
}

Semantic roles & 50–950 ramp

primary

#423B87

secondary

#A8AE70

accent

#CF59C4

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #423B87

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

Preview Lab → · Contrast checker → · Palette generator →