#4033DB#4033DB

#4033DB is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.5% C 0.240 H 275.1°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#4033DB
RGB	rgb(64, 51, 219)
HSL	hsl(245, 70%, 53%)
HSV	hsv(245, 77%, 86%)
CMYK	cmyk(70.8%, 76.7%, 0%, 14.1%)
CIE-LAB	lab(35.14, 56.09, -82.62)
CIE-LCH	lch(35.14, 99.86, 304.17°)
OKLab	oklab(46.54% 0.0215 -0.2389)
OKLCH	oklch(46.54% 0.24 275.1)
XYZ	xyz(16.0801, 8.5706, 67.8109)
Luminance	0.0857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.91

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4033DB #CEDB33

analogous

#337ADB #4033DB #9433DB

triadic

#4033DB #DB4033 #33DB40

tetradic

#4033DB #DB337A #CEDB33 #33DB94

square

#4033DB #DB337A #CEDB33 #33DB94

split-complementary

#4033DB #DB9433 #7ADB33

monochromatic

#1E167D #2B1FB1 #4033DB #7167E4 #A19BED

Accessibility & contrast

On white

7.74

#4033DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4033DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4033DB

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4033DB	#FFFFFF	#000000	##FFFFFF
##4033DB	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AE0

Deuteranopia (green-blind)

#004BD8

Tritanopia (blue-blind)

#006586

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4033db;
/* rgb */ color: rgb(64, 51, 219);
/* oklch */ color: oklch(46.5% 0.240 275.1);

Tailwind

colors: {
  custom: {
    50: '#8b6ee8',
    500: '#4033db',
    950: '#000000',
  },
}

SCSS

$custom: #4033db;
$custom-light: #8b6ee8;
$custom-dark: #000000;

JSON

{
  "hex": "#4033db",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 219
  },
  "hsl": {
    "h": 244.643,
    "s": 70,
    "l": 52.941
  },
  "oklch": {
    "l": 0.46539,
    "c": 0.23986,
    "h": 275.1
  },
  "luminance": 0.08572
}

Semantic roles & 50–950 ramp

primary

#4033DB

secondary

#D4D991

accent

#ED3BDF

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #4033DB

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

Preview Lab → · Contrast checker → · Palette generator →