#4043AA#4043AA

#4043AA is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.162 H 276.3°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#4043AA
RGB	rgb(64, 67, 170)
HSL	hsl(238, 45%, 46%)
HSV	hsv(238, 62%, 67%)
CMYK	cmyk(62.4%, 60.6%, 0%, 33.3%)
CIE-LAB	lab(33.99, 30.90, -55.80)
CIE-LCH	lch(33.99, 63.79, 298.98°)
OKLab	oklab(44.35% 0.0178 -0.1605)
OKLCH	oklch(44.35% 0.162 276.3)
XYZ	xyz(11.3748, 8.0057, 38.9682)
Luminance	0.0801 (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

#4043AA #AAA740

analogous

#4078AA #4043AA #7240AA

triadic

#4043AA #AA4043 #43AA40

tetradic

#4043AA #AA4078 #AAA740 #40AA72

square

#4043AA #AA4078 #AAA740 #40AA72

split-complementary

#4043AA #AA7240 #78AA40

monochromatic

#1F2051 #2F317E #4043AA #6366C4 #8F91D5

Accessibility & contrast

On white

8.07

#4043AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#4043AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043AA

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043AA	#FFFFFF	#000000	##FFFFFF
##4043AA	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4043aa;
/* rgb */ color: rgb(64, 67, 170);
/* oklch */ color: oklch(44.3% 0.162 276.3);

Tailwind

colors: {
  custom: {
    50: '#8077c4',
    500: '#4043aa',
    950: '#000000',
  },
}

SCSS

$custom: #4043aa;
$custom-light: #8077c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4043aa",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 170
  },
  "hsl": {
    "h": 238.302,
    "s": 45.299,
    "l": 45.882
  },
  "oklch": {
    "l": 0.44346,
    "c": 0.1615,
    "h": 276.3
  },
  "luminance": 0.08007
}

Semantic roles & 50–950 ramp

primary

#4043AA

secondary

#C0BE86

accent

#D153D5

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #4043AA

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

Preview Lab → · Contrast checker → · Palette generator →