#3437D2#3437D2

#3437D2 is a mid, highly saturated blue. Relative luminance 0.081; OKLCH L 45.4% C 0.229 H 271.9°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3437D2
RGB	rgb(52, 55, 210)
HSL	hsl(239, 64%, 51%)
HSV	hsv(239, 75%, 82%)
CMYK	cmyk(75.2%, 73.8%, 0%, 17.6%)
CIE-LAB	lab(34.22, 50.16, -78.98)
CIE-LCH	lch(34.22, 93.56, 302.42°)
OKLab	oklab(45.42% 0.0074 -0.2286)
OKLCH	oklch(45.42% 0.229 271.9)
XYZ	xyz(14.4113, 8.1140, 61.7669)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3437D2 #D2CF34

analogous

#3486D2 #3437D2 #8034D2

triadic

#3437D2 #D23437 #37D234

tetradic

#3437D2 #D23486 #D2CF34 #34D280

square

#3437D2 #D23486 #D2CF34 #34D280

split-complementary

#3437D2 #D28034 #86D234

monochromatic

#191B72 #2427A4 #3437D2 #6668DD #989AE8

Accessibility & contrast

On white

8.01

#3437D2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3437D2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437D2

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437D2	#FFFFFF	#000000	##FFFFFF
##3437D2	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D7

Deuteranopia (green-blind)

#0049CF

Tritanopia (blue-blind)

#006482

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3437d2;
/* rgb */ color: rgb(52, 55, 210);
/* oklch */ color: oklch(45.4% 0.229 271.9);

Tailwind

colors: {
  custom: {
    50: '#8570e1',
    500: '#3437d2',
    950: '#000000',
  },
}

SCSS

$custom: #3437d2;
$custom-light: #8570e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3437d2",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 210
  },
  "hsl": {
    "h": 238.861,
    "s": 63.71,
    "l": 51.373
  },
  "oklch": {
    "l": 0.45417,
    "c": 0.22874,
    "h": 271.9
  },
  "luminance": 0.08116
}

Semantic roles & 50–950 ramp

primary

#3437D2

secondary

#D4D28E

accent

#E441E7

background

#F9F6FE

surface

#F1ECFC

border

#CBC7D5

text

#0D0715

muted

#7E7A84

Preview Lab

Preview with #3437D2

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

Preview Lab → · Contrast checker → · Palette generator →