#3437AB#3437AB

#3437AB is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.180 H 274.1°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#3437AB
RGB	rgb(52, 55, 171)
HSL	hsl(238, 53%, 44%)
HSV	hsv(238, 70%, 67%)
CMYK	cmyk(69.6%, 67.8%, 0%, 32.9%)
CIE-LAB	lab(30.40, 37.05, -62.30)
CIE-LCH	lch(30.40, 72.48, 300.74°)
OKLab	oklab(41.54% 0.013 -0.18)
OKLCH	oklch(41.54% 0.18 274.1)
XYZ	xyz(10.1306, 6.4018, 39.2220)
Luminance	0.0640 (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

#3437AB #ABA834

analogous

#3472AB #3437AB #6C34AB

triadic

#3437AB #AB3437 #37AB34

tetradic

#3437AB #AB3472 #ABA834 #34AB6C

square

#3437AB #AB3472 #ABA834 #34AB6C

split-complementary

#3437AB #AB6C34 #72AB34

monochromatic

#17194D #26287C #3437AB #5255CA #8183D9

Accessibility & contrast

On white

9.21

#3437AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3437AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437AB

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437AB	#FFFFFF	#000000	##FFFFFF
##3437AB	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAF

Deuteranopia (green-blind)

#0042A9

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3437ab;
/* rgb */ color: rgb(52, 55, 171);
/* oklch */ color: oklch(41.5% 0.180 274.1);

Tailwind

colors: {
  custom: {
    50: '#7c6ec5',
    500: '#3437ab',
    950: '#000000',
  },
}

SCSS

$custom: #3437ab;
$custom-light: #7c6ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3437ab",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 171
  },
  "hsl": {
    "h": 238.487,
    "s": 53.363,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41535,
    "c": 0.18044,
    "h": 274.1
  },
  "luminance": 0.06403
}

Semantic roles & 50–950 ramp

primary

#3437AB

secondary

#C2C079

accent

#D94BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3437AB

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

Preview Lab → · Contrast checker → · Palette generator →