#3437C3#3437C3

#3437C3 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.9% C 0.211 H 272.7°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#3437C3
RGB	rgb(52, 55, 195)
HSL	hsl(239, 58%, 48%)
HSV	hsv(239, 73%, 76%)
CMYK	cmyk(73.3%, 71.8%, 0%, 23.5%)
CIE-LAB	lab(32.70, 45.21, -72.74)
CIE-LCH	lch(32.70, 85.65, 301.86°)
OKLab	oklab(43.89% 0.0098 -0.2105)
OKLCH	oklch(43.89% 0.211 272.7)
XYZ	xyz(12.6294, 7.4013, 52.3822)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.61

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3437C3 #C3C034

analogous

#347EC3 #3437C3 #7834C3

triadic

#3437C3 #C33437 #37C334

tetradic

#3437C3 #C3347E #C3C034 #34C378

square

#3437C3 #C3347E #C3C034 #34C378

split-complementary

#3437C3 #C37834 #7EC334

monochromatic

#1A1C62 #272993 #3437C3 #6062D5 #9092E1

Accessibility & contrast

On white

8.47

#3437C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3437C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437C3

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437C3	#FFFFFF	#000000	##FFFFFF
##3437C3	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C7

Deuteranopia (green-blind)

#0046C0

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3437c3;
/* rgb */ color: rgb(52, 55, 195);
/* oklch */ color: oklch(43.9% 0.211 272.7);

Tailwind

colors: {
  custom: {
    50: '#816fd6',
    500: '#3437c3',
    950: '#000000',
  },
}

SCSS

$custom: #3437c3;
$custom-light: #816fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3437c3",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 195
  },
  "hsl": {
    "h": 238.741,
    "s": 57.895,
    "l": 48.431
  },
  "oklch": {
    "l": 0.43885,
    "c": 0.21069,
    "h": 272.7
  },
  "luminance": 0.07403
}

Semantic roles & 50–950 ramp

primary

#3437C3

secondary

#CCCB87

accent

#DE47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3437C3

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

Preview Lab → · Contrast checker → · Palette generator →