#4337BD#4337BD

#4337BD is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.3% C 0.200 H 278.4°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#4337BD
RGB	rgb(67, 55, 189)
HSL	hsl(245, 55%, 48%)
HSV	hsv(245, 71%, 74%)
CMYK	cmyk(64.6%, 70.9%, 0%, 25.9%)
CIE-LAB	lab(33.13, 44.93, -68.47)
CIE-LCH	lch(33.13, 81.90, 303.27°)
OKLab	oklab(44.28% 0.0293 -0.1976)
OKLCH	oklch(44.28% 0.2 278.4)
XYZ	xyz(12.8633, 7.5987, 48.9231)
Luminance	0.0760 (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

#4337BD #B1BD37

analogous

#376EBD #4337BD #8637BD

triadic

#4337BD #BD4337 #37BD43

tetradic

#4337BD #BD376E #B1BD37 #37BD86

square

#4337BD #BD376E #B1BD37 #37BD86

split-complementary

#4337BD #BD8637 #6EBD37

monochromatic

#211B5E #32298E #4337BD #6A60D1 #9790DF

Accessibility & contrast

On white

8.33

#4337BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#4337BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337BD

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337BD	#FFFFFF	#000000	##FFFFFF
##4337BD	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C1

Deuteranopia (green-blind)

#0048BB

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4337bd;
/* rgb */ color: rgb(67, 55, 189);
/* oklch */ color: oklch(44.3% 0.200 278.4);

Tailwind

colors: {
  custom: {
    50: '#866fd2',
    500: '#4337bd',
    950: '#000000',
  },
}

SCSS

$custom: #4337bd;
$custom-light: #866fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#4337bd",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 189
  },
  "hsl": {
    "h": 245.373,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44281,
    "c": 0.19977,
    "h": 278.4
  },
  "luminance": 0.076
}

Semantic roles & 50–950 ramp

primary

#4337BD

secondary

#C3C986

accent

#DE4AD1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4337BD

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

Preview Lab → · Contrast checker → · Palette generator →