#4337B1#4337B1

#4337B1 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.2% C 0.185 H 279.7°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#4337B1
RGB	rgb(67, 55, 177)
HSL	hsl(246, 53%, 45%)
HSV	hsv(246, 69%, 69%)
CMYK	cmyk(62.1%, 68.9%, 0%, 30.6%)
CIE-LAB	lab(32.03, 41.08, -63.17)
CIE-LCH	lch(32.03, 75.36, 303.04°)
OKLab	oklab(43.16% 0.0312 -0.1821)
OKLCH	oklch(43.16% 0.185 279.7)
XYZ	xyz(11.6142, 7.0991, 42.3447)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.24

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337B1 #A5B137

analogous

#3768B1 #4337B1 #8037B1

triadic

#4337B1 #B14337 #37B143

tetradic

#4337B1 #B13768 #A5B137 #37B180

square

#4337B1 #B13768 #A5B137 #37B180

split-complementary

#4337B1 #B18037 #68B137

monochromatic

#201A54 #312882 #4337B1 #655ACC #9088DA

Accessibility & contrast

On white

8.68

#4337B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#4337B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337B1

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337B1	#FFFFFF	#000000	##FFFFFF
##4337B1	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B5

Deuteranopia (green-blind)

#0047AF

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4337b1;
/* rgb */ color: rgb(67, 55, 177);
/* oklch */ color: oklch(43.2% 0.185 279.7);

Tailwind

colors: {
  custom: {
    50: '#846fc9',
    500: '#4337b1',
    950: '#000000',
  },
}

SCSS

$custom: #4337b1;
$custom-light: #846fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4337b1",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 177
  },
  "hsl": {
    "h": 245.902,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43155,
    "c": 0.18477,
    "h": 279.7
  },
  "luminance": 0.071
}

Semantic roles & 50–950 ramp

primary

#4337B1

secondary

#BDC480

accent

#DC4CCE

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4337B1

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

Preview Lab → · Contrast checker → · Palette generator →