#4337B9#4337B9

#4337B9 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.9% C 0.195 H 278.8°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#4337B9
RGB	rgb(67, 55, 185)
HSL	hsl(246, 54%, 47%)
HSV	hsv(246, 70%, 73%)
CMYK	cmyk(63.8%, 70.3%, 0%, 27.5%)
CIE-LAB	lab(32.76, 43.65, -66.72)
CIE-LCH	lch(32.76, 79.73, 303.19°)
OKLab	oklab(43.9% 0.0299 -0.1925)
OKLCH	oklch(43.9% 0.195 278.8)
XYZ	xyz(12.4351, 7.4275, 46.6679)
Luminance	0.0743 (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

#4337B9 #ADB937

analogous

#376CB9 #4337B9 #8437B9

triadic

#4337B9 #B94337 #37B943

tetradic

#4337B9 #B9376C #ADB937 #37B984

square

#4337B9 #B9376C #ADB937 #37B984

split-complementary

#4337B9 #B98437 #6CB937

monochromatic

#211B5B #32298A #4337B9 #685ECF #958DDD

Accessibility & contrast

On white

8.45

#4337B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#4337B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337B9

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337B9	#FFFFFF	#000000	##FFFFFF
##4337B9	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BD

Deuteranopia (green-blind)

#0048B7

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4337b9;
/* rgb */ color: rgb(67, 55, 185);
/* oklch */ color: oklch(43.9% 0.195 278.8);

Tailwind

colors: {
  custom: {
    50: '#866fcf',
    500: '#4337b9',
    950: '#000000',
  },
}

SCSS

$custom: #4337b9;
$custom-light: #866fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4337b9",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 185
  },
  "hsl": {
    "h": 245.538,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.43901,
    "c": 0.19482,
    "h": 278.8
  },
  "luminance": 0.07428
}

Semantic roles & 50–950 ramp

primary

#4337B9

secondary

#C1C884

accent

#DE4AD0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4337B9

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

Preview Lab → · Contrast checker → · Palette generator →