#4337A0#4337A0

#4337A0 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.163 H 281.9°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#4337A0
RGB	rgb(67, 55, 160)
HSL	hsl(247, 49%, 42%)
HSV	hsv(247, 66%, 63%)
CMYK	cmyk(58.1%, 65.6%, 0%, 37.3%)
CIE-LAB	lab(30.55, 35.58, -55.38)
CIE-LCH	lch(30.55, 65.83, 302.72°)
OKLab	oklab(41.63% 0.0334 -0.1593)
OKLCH	oklch(41.63% 0.163 281.9)
XYZ	xyz(10.0241, 6.4631, 33.9702)
Luminance	0.0646 (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

#4337A0 #94A037

analogous

#3760A0 #4337A0 #7837A0

triadic

#4337A0 #A04337 #37A043

tetradic

#4337A0 #A03760 #94A037 #37A078

square

#4337A0 #A03760 #94A037 #37A078

split-complementary

#4337A0 #A07837 #60A037

monochromatic

#1D1845 #302772 #4337A0 #5E51C3 #887FD3

Accessibility & contrast

On white

9.16

#4337A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#4337A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337A0

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337A0	#FFFFFF	#000000	##FFFFFF
##4337A0	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00449E

Tritanopia (blue-blind)

#0F5166

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4337a0;
/* rgb */ color: rgb(67, 55, 160);
/* oklch */ color: oklch(41.6% 0.163 281.9);

Tailwind

colors: {
  custom: {
    50: '#816fbd',
    500: '#4337a0',
    950: '#000000',
  },
}

SCSS

$custom: #4337a0;
$custom-light: #816fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#4337a0",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 160
  },
  "hsl": {
    "h": 246.857,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4163,
    "c": 0.16274,
    "h": 281.9
  },
  "luminance": 0.06464
}

Semantic roles & 50–950 ramp

primary

#4337A0

secondary

#B4BC77

accent

#D84FC9

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #4337A0

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

Preview Lab → · Contrast checker → · Palette generator →