#4231AA#4231AA

#4231AA is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.5% C 0.183 H 281.3°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#4231AA
RGB	rgb(66, 49, 170)
HSL	hsl(248, 55%, 43%)
HSV	hsv(248, 71%, 67%)
CMYK	cmyk(61.2%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(30.05, 42.17, -62.24)
CIE-LCH	lch(30.05, 75.18, 304.12°)
OKLab	oklab(41.52% 0.0357 -0.1794)
OKLCH	oklch(41.52% 0.183 281.3)
XYZ	xyz(10.5985, 6.2564, 38.6715)
Luminance	0.0626 (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

#4231AA #99AA31

analogous

#315CAA #4231AA #7E31AA

triadic

#4231AA #AA4231 #31AA42

tetradic

#4231AA #AA315C #99AA31 #31AA7E

square

#4231AA #AA315C #99AA31 #31AA7E

split-complementary

#4231AA #AA7E31 #5CAA31

monochromatic

#1D164B #30237A #4231AA #5E4DCC #897CD9

Accessibility & contrast

On white

9.33

#4231AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#4231AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231AA

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231AA	#FFFFFF	#000000	##FFFFFF
##4231AA	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAE

Deuteranopia (green-blind)

#0042A8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #4231aa;
/* rgb */ color: rgb(66, 49, 170);
/* oklch */ color: oklch(41.5% 0.183 281.3);

Tailwind

colors: {
  custom: {
    50: '#836bc4',
    500: '#4231aa',
    950: '#000000',
  },
}

SCSS

$custom: #4231aa;
$custom-light: #836bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4231aa",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 248.43,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4152,
    "c": 0.18292,
    "h": 281.3
  },
  "luminance": 0.06257
}

Semantic roles & 50–950 ramp

primary

#4231AA

secondary

#B7C275

accent

#DF49CA

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4231AA

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

Preview Lab → · Contrast checker → · Palette generator →