#4337B4#4337B4

#4337B4 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.4% C 0.189 H 279.4°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#4337B4
RGB	rgb(67, 55, 180)
HSL	hsl(246, 53%, 46%)
HSV	hsv(246, 69%, 71%)
CMYK	cmyk(62.8%, 69.4%, 0%, 29.4%)
CIE-LAB	lab(32.30, 42.05, -64.51)
CIE-LCH	lch(32.30, 77.01, 303.10°)
OKLab	oklab(43.43% 0.0308 -0.186)
OKLCH	oklch(43.43% 0.189 279.4)
XYZ	xyz(11.9165, 7.2200, 43.9368)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337B4 #A8B437

analogous

#3769B4 #4337B4 #8137B4

triadic

#4337B4 #B44337 #37B443

tetradic

#4337B4 #B43769 #A8B437 #37B481

square

#4337B4 #B43769 #A8B437 #37B481

split-complementary

#4337B4 #B48137 #69B437

monochromatic

#201A56 #322985 #4337B4 #665BCD #928ADB

Accessibility & contrast

On white

8.59

#4337B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#4337B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337B4

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337B4	#FFFFFF	#000000	##FFFFFF
##4337B4	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4337b4;
/* rgb */ color: rgb(67, 55, 180);
/* oklch */ color: oklch(43.4% 0.189 279.4);

Tailwind

colors: {
  custom: {
    50: '#856fcc',
    500: '#4337b4',
    950: '#000000',
  },
}

SCSS

$custom: #4337b4;
$custom-light: #856fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4337b4",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 180
  },
  "hsl": {
    "h": 245.76,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43433,
    "c": 0.18857,
    "h": 279.4
  },
  "luminance": 0.07221
}

Semantic roles & 50–950 ramp

primary

#4337B4

secondary

#BFC681

accent

#DD4BCF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4337B4

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

Preview Lab → · Contrast checker → · Palette generator →