#4337AB#4337AB

#4337AB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.177 H 280.4°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#4337AB
RGB	rgb(67, 55, 171)
HSL	hsl(246, 51%, 44%)
HSV	hsv(246, 68%, 67%)
CMYK	cmyk(60.8%, 67.8%, 0%, 32.9%)
CIE-LAB	lab(31.50, 39.15, -60.46)
CIE-LCH	lch(31.50, 72.03, 302.92°)
OKLab	oklab(42.61% 0.0321 -0.1742)
OKLCH	oklch(42.61% 0.177 280.4)
XYZ	xyz(11.0293, 6.8652, 39.2641)
Luminance	0.0687 (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

#4337AB #9FAB37

analogous

#3765AB #4337AB #7D37AB

triadic

#4337AB #AB4337 #37AB43

tetradic

#4337AB #AB3765 #9FAB37 #37AB7D

square

#4337AB #AB3765 #9FAB37 #37AB7D

split-complementary

#4337AB #AB7D37 #65AB37

monochromatic

#1F194E #31287D #4337AB #6256C9 #8D85D8

Accessibility & contrast

On white

8.85

#4337AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#4337AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337AB

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337AB	#FFFFFF	#000000	##FFFFFF
##4337AB	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAF

Deuteranopia (green-blind)

#0046A9

Tritanopia (blue-blind)

#00556C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4337ab;
/* rgb */ color: rgb(67, 55, 171);
/* oklch */ color: oklch(42.6% 0.177 280.4);

Tailwind

colors: {
  custom: {
    50: '#836fc5',
    500: '#4337ab',
    950: '#000000',
  },
}

SCSS

$custom: #4337ab;
$custom-light: #836fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4337ab",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 171
  },
  "hsl": {
    "h": 246.207,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42607,
    "c": 0.1771,
    "h": 280.4
  },
  "luminance": 0.06866
}

Semantic roles & 50–950 ramp

primary

#4337AB

secondary

#BAC17C

accent

#DB4DCC

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4337AB

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

Preview Lab → · Contrast checker → · Palette generator →