#423BAF#423BAF

#423BAF is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.178 H 278.7°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#423BAF
RGB	rgb(66, 59, 175)
HSL	hsl(244, 50%, 46%)
HSV	hsv(244, 66%, 69%)
CMYK	cmyk(62.3%, 66.3%, 0%, 31.4%)
CIE-LAB	lab(32.66, 37.90, -60.96)
CIE-LCH	lch(32.66, 71.78, 301.87°)
OKLab	oklab(43.53% 0.0269 -0.1756)
OKLCH	oklch(43.53% 0.178 278.7)
XYZ	xyz(11.5461, 7.3804, 41.3653)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423BAF #A8AF3B

analogous

#3B6EAF #423BAF #7C3BAF

triadic

#423BAF #AF423B #3BAF42

tetradic

#423BAF #AF3B6E #A8AF3B #3BAF7C

square

#423BAF #AF3B6E #A8AF3B #3BAF7C

split-complementary

#423BAF #AF7C3B #6EAF3B

monochromatic

#1F1C53 #312C81 #423BAF #655EC9 #918CD8

Accessibility & contrast

On white

8.48

#423BAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#423BAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BAF

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BAF	#FFFFFF	#000000	##FFFFFF
##423BAF	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423baf;
/* rgb */ color: rgb(66, 59, 175);
/* oklch */ color: oklch(43.5% 0.178 278.7);

Tailwind

colors: {
  custom: {
    50: '#8372c8',
    500: '#423baf',
    950: '#000000',
  },
}

SCSS

$custom: #423baf;
$custom-light: #8372c8;
$custom-dark: #000000;

JSON

{
  "hex": "#423baf",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 175
  },
  "hsl": {
    "h": 243.621,
    "s": 49.573,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43533,
    "c": 0.1777,
    "h": 278.7
  },
  "luminance": 0.07381
}

Semantic roles & 50–950 ramp

primary

#423BAF

secondary

#BFC383

accent

#D94FD1

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423BAF

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

Preview Lab → · Contrast checker → · Palette generator →