#3437AD#3437AD

#3437AD is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.7% C 0.183 H 274.0°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#3437AD
RGB	rgb(52, 55, 173)
HSL	hsl(239, 54%, 44%)
HSV	hsv(239, 70%, 68%)
CMYK	cmyk(69.9%, 68.2%, 0%, 32.2%)
CIE-LAB	lab(30.59, 37.74, -63.19)
CIE-LCH	lch(30.59, 73.60, 300.85°)
OKLab	oklab(41.73% 0.0128 -0.1826)
OKLCH	oklch(41.73% 0.183 274)
XYZ	xyz(10.3227, 6.4786, 40.2335)
Luminance	0.0648 (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

#3437AD #ADAA34

analogous

#3474AD #3437AD #6E34AD

triadic

#3437AD #AD3437 #37AD34

tetradic

#3437AD #AD3474 #ADAA34 #34AD6E

square

#3437AD #AD3474 #ADAA34 #34AD6E

split-complementary

#3437AD #AD6E34 #74AD34

monochromatic

#18194F #26287E #3437AD #5356CB #8284D9

Accessibility & contrast

On white

9.15

#3437AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3437AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437AD

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437AD	#FFFFFF	#000000	##FFFFFF
##3437AD	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB1

Deuteranopia (green-blind)

#0042AB

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3437ad;
/* rgb */ color: rgb(52, 55, 173);
/* oklch */ color: oklch(41.7% 0.183 274.0);

Tailwind

colors: {
  custom: {
    50: '#7c6ec7',
    500: '#3437ad',
    950: '#000000',
  },
}

SCSS

$custom: #3437ad;
$custom-light: #7c6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3437ad",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 173
  },
  "hsl": {
    "h": 238.512,
    "s": 53.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41725,
    "c": 0.18303,
    "h": 274
  },
  "luminance": 0.0648
}

Semantic roles & 50–950 ramp

primary

#3437AD

secondary

#C3C17A

accent

#DA4BDD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3437AD

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

Preview Lab → · Contrast checker → · Palette generator →