#423E91#423E91

#423E91 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.133 H 281.1°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#423E91
RGB	rgb(66, 62, 145)
HSL	hsl(243, 40%, 41%)
HSV	hsv(243, 57%, 57%)
CMYK	cmyk(54.5%, 57.2%, 0%, 43.1%)
CIE-LAB	lab(30.99, 26.01, -45.54)
CIE-LCH	lch(30.99, 52.44, 299.74°)
OKLab	oklab(41.56% 0.0255 -0.1303)
OKLCH	oklch(41.56% 0.133 281.1)
XYZ	xyz(9.0786, 6.6473, 27.5872)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423E91 #8D913E

analogous

#3E6391 #423E91 #6C3E91

triadic

#423E91 #91423E #3E9142

tetradic

#423E91 #913E63 #8D913E #3E916C

square

#423E91 #913E63 #8D913E #3E916C

split-complementary

#423E91 #916C3E #63913E

monochromatic

#1B193B #2E2C66 #423E91 #5A56B7 #8480C9

Accessibility & contrast

On white

9.01

#423E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#423E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423E91

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423E91	#FFFFFF	#000000	##FFFFFF
##423E91	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034C94

Deuteranopia (green-blind)

#00468F

Tritanopia (blue-blind)

#205161

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #423e91;
/* rgb */ color: rgb(66, 62, 145);
/* oklch */ color: oklch(41.6% 0.133 281.1);

Tailwind

colors: {
  custom: {
    50: '#7d73b2',
    500: '#423e91',
    950: '#000000',
  },
}

SCSS

$custom: #423e91;
$custom-light: #7d73b2;
$custom-dark: #000000;

JSON

{
  "hex": "#423e91",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 145
  },
  "hsl": {
    "h": 242.892,
    "s": 40.097,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41561,
    "c": 0.1328,
    "h": 281.1
  },
  "luminance": 0.06648
}

Semantic roles & 50–950 ramp

primary

#423E91

secondary

#B0B378

accent

#D058CA

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #423E91

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

Preview Lab → · Contrast checker → · Palette generator →