#423CAF#423CAF

#423CAF is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.7% C 0.176 H 278.5°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#423CAF
RGB	rgb(66, 60, 175)
HSL	hsl(243, 49%, 46%)
HSV	hsv(243, 66%, 69%)
CMYK	cmyk(62.3%, 65.7%, 0%, 31.4%)
CIE-LAB	lab(32.88, 37.29, -60.59)
CIE-LCH	lch(32.88, 71.14, 301.61°)
OKLab	oklab(43.7% 0.0261 -0.1746)
OKLCH	oklch(43.7% 0.177 278.5)
XYZ	xyz(11.5980, 7.4842, 41.3825)
Luminance	0.0748 (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

#423CAF #A9AF3C

analogous

#3C6FAF #423CAF #7B3CAF

triadic

#423CAF #AF423C #3CAF42

tetradic

#423CAF #AF3C6F #A9AF3C #3CAF7B

square

#423CAF #AF3C6F #A9AF3C #3CAF7B

split-complementary

#423CAF #AF7B3C #6FAF3C

monochromatic

#201D54 #312C81 #423CAF #6560C8 #918DD8

Accessibility & contrast

On white

8.41

#423CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#423CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CAF

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CAF	#FFFFFF	#000000	##FFFFFF
##423CAF	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0049AD

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423caf;
/* rgb */ color: rgb(66, 60, 175);
/* oklch */ color: oklch(43.7% 0.176 278.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#423caf",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 175
  },
  "hsl": {
    "h": 243.13,
    "s": 48.936,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43698,
    "c": 0.1765,
    "h": 278.5
  },
  "luminance": 0.07485
}

Semantic roles & 50–950 ramp

primary

#423CAF

secondary

#C0C384

accent

#D84FD1

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423CAF

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

Preview Lab → · Contrast checker → · Palette generator →