#4337DD#4337DD

#4337DD is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.4% C 0.238 H 275.5°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#4337DD
RGB	rgb(67, 55, 221)
HSL	hsl(244, 71%, 54%)
HSV	hsv(244, 75%, 87%)
CMYK	cmyk(69.7%, 75.1%, 0%, 13.3%)
CIE-LAB	lab(36.26, 54.94, -81.91)
CIE-LCH	lch(36.26, 98.63, 303.85°)
OKLab	oklab(47.44% 0.023 -0.2368)
OKLCH	oklch(47.44% 0.238 275.5)
XYZ	xyz(16.7278, 9.1445, 69.2761)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.71

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337DD #D1DD37

analogous

#377EDD #4337DD #9637DD

triadic

#4337DD #DD4337 #37DD43

tetradic

#4337DD #DD377E #D1DD37 #37DD96

square

#4337DD #DD377E #D1DD37 #37DD96

split-complementary

#4337DD #DD9637 #7EDD37

monochromatic

#1E1683 #2A1FB8 #4337DD #746BE6 #A5A0EF

Accessibility & contrast

On white

7.42

#4337DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#4337DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337DD

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337DD	#FFFFFF	#000000	##FFFFFF
##4337DD	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CE2

Deuteranopia (green-blind)

#004EDA

Tritanopia (blue-blind)

#006888

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4337dd;
/* rgb */ color: rgb(67, 55, 221);
/* oklch */ color: oklch(47.4% 0.238 275.5);

Tailwind

colors: {
  custom: {
    50: '#8d71e9',
    500: '#4337dd',
    950: '#000000',
  },
}

SCSS

$custom: #4337dd;
$custom-light: #8d71e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4337dd",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 221
  },
  "hsl": {
    "h": 244.337,
    "s": 70.94,
    "l": 54.118
  },
  "oklch": {
    "l": 0.47437,
    "c": 0.23793,
    "h": 275.5
  },
  "luminance": 0.09146
}

Semantic roles & 50–950 ramp

primary

#4337DD

secondary

#D6DB95

accent

#EE3AE1

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4337DD

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

Preview Lab → · Contrast checker → · Palette generator →