#4033C1#4033C1

#4033C1 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.9% C 0.209 H 277.4°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#4033C1
RGB	rgb(64, 51, 193)
HSL	hsl(245, 58%, 48%)
HSV	hsv(245, 74%, 76%)
CMYK	cmyk(66.8%, 73.6%, 0%, 24.3%)
CIE-LAB	lab(32.50, 48.06, -71.88)
CIE-LCH	lch(32.50, 86.47, 303.77°)
OKLab	oklab(43.89% 0.0271 -0.2076)
OKLCH	oklch(43.89% 0.209 277.4)
XYZ	xyz(12.9207, 7.3068, 51.1712)
Luminance	0.0731 (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

#4033C1 #B4C133

analogous

#336DC1 #4033C1 #8733C1

triadic

#4033C1 #C14033 #33C140

tetradic

#4033C1 #C1336D #B4C133 #33C187

square

#4033C1 #C1336D #B4C133 #33C187

split-complementary

#4033C1 #C18733 #6DC133

monochromatic

#201960 #302691 #4033C1 #685DD4 #958DE1

Accessibility & contrast

On white

8.53

#4033C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#4033C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033C1

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033C1	#FFFFFF	#000000	##FFFFFF
##4033C1	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C5

Deuteranopia (green-blind)

#0046BE

Tritanopia (blue-blind)

#005B77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4033c1;
/* rgb */ color: rgb(64, 51, 193);
/* oklch */ color: oklch(43.9% 0.209 277.4);

Tailwind

colors: {
  custom: {
    50: '#866dd5',
    500: '#4033c1',
    950: '#000000',
  },
}

SCSS

$custom: #4033c1;
$custom-light: #866dd5;
$custom-dark: #000000;

JSON

{
  "hex": "#4033c1",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 193
  },
  "hsl": {
    "h": 245.493,
    "s": 58.197,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43885,
    "c": 0.20941,
    "h": 277.4
  },
  "luminance": 0.07308
}

Semantic roles & 50–950 ramp

primary

#4033C1

secondary

#C5CB84

accent

#E146D3

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4033C1

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

Preview Lab → · Contrast checker → · Palette generator →