#423D97#423D97

#423D97 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.143 H 280.8°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#423D97
RGB	rgb(66, 61, 151)
HSL	hsl(243, 42%, 42%)
HSV	hsv(243, 60%, 59%)
CMYK	cmyk(56.3%, 59.6%, 0%, 40.8%)
CIE-LAB	lab(31.18, 28.66, -48.89)
CIE-LCH	lch(31.18, 56.68, 300.38°)
OKLab	oklab(41.85% 0.0267 -0.1402)
OKLCH	oklch(41.85% 0.143 280.8)
XYZ	xyz(9.4997, 6.7295, 30.0705)
Luminance	0.0673 (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

#423D97 #92973D

analogous

#3D6597 #423D97 #6F3D97

triadic

#423D97 #97423D #3D9742

tetradic

#423D97 #973D65 #92973D #3D976F

square

#423D97 #973D65 #92973D #3D976F

split-complementary

#423D97 #976F3D #65973D

monochromatic

#1C1A40 #2F2B6B #423D97 #5C56BB #8682CC

Accessibility & contrast

On white

8.95

#423D97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#423D97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423D97

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423D97	#FFFFFF	#000000	##FFFFFF
##423D97	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9A

Deuteranopia (green-blind)

#004695

Tritanopia (blue-blind)

#195264

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #423d97;
/* rgb */ color: rgb(66, 61, 151);
/* oklch */ color: oklch(41.8% 0.143 280.8);

Tailwind

colors: {
  custom: {
    50: '#7e72b6',
    500: '#423d97',
    950: '#000000',
  },
}

SCSS

$custom: #423d97;
$custom-light: #7e72b6;
$custom-dark: #000000;

JSON

{
  "hex": "#423d97",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 151
  },
  "hsl": {
    "h": 243.333,
    "s": 42.453,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41845,
    "c": 0.14271,
    "h": 280.8
  },
  "luminance": 0.0673
}

Semantic roles & 50–950 ramp

primary

#423D97

secondary

#B3B779

accent

#D256CB

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0811

muted

#7C7B80

Preview Lab

Preview with #423D97

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

Preview Lab → · Contrast checker → · Palette generator →