#3437C0#3437C0

#3437C0 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.6% C 0.207 H 272.8°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3437C0
RGB	rgb(52, 55, 192)
HSL	hsl(239, 57%, 48%)
HSV	hsv(239, 73%, 75%)
CMYK	cmyk(72.9%, 71.4%, 0%, 24.7%)
CIE-LAB	lab(32.41, 44.21, -71.47)
CIE-LCH	lch(32.41, 84.04, 301.74°)
OKLab	oklab(43.58% 0.0103 -0.2067)
OKLCH	oklch(43.58% 0.207 272.8)
XYZ	xyz(12.2936, 7.2670, 50.6137)
Luminance	0.0727 (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

#3437C0 #C0BD34

analogous

#347DC0 #3437C0 #7734C0

triadic

#3437C0 #C03437 #37C034

tetradic

#3437C0 #C0347D #C0BD34 #34C077

square

#3437C0 #C0347D #C0BD34 #34C077

split-complementary

#3437C0 #C07734 #7DC034

monochromatic

#1A1B60 #272990 #3437C0 #5E60D3 #8E90E0

Accessibility & contrast

On white

8.56

#3437C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3437C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437C0

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437C0	#FFFFFF	#000000	##FFFFFF
##3437C0	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C4

Deuteranopia (green-blind)

#0045BE

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3437c0;
/* rgb */ color: rgb(52, 55, 192);
/* oklch */ color: oklch(43.6% 0.207 272.8);

Tailwind

colors: {
  custom: {
    50: '#816fd4',
    500: '#3437c0',
    950: '#000000',
  },
}

SCSS

$custom: #3437c0;
$custom-light: #816fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3437c0",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 192
  },
  "hsl": {
    "h": 238.714,
    "s": 57.377,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43584,
    "c": 0.207,
    "h": 272.8
  },
  "luminance": 0.07268
}

Semantic roles & 50–950 ramp

primary

#3437C0

secondary

#CBC985

accent

#DD47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3437C0

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

Preview Lab → · Contrast checker → · Palette generator →