#3437AF#3437AF

#3437AF is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.186 H 273.9°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#3437AF
RGB	rgb(52, 55, 175)
HSL	hsl(239, 54%, 45%)
HSV	hsv(239, 70%, 69%)
CMYK	cmyk(70.3%, 68.6%, 0%, 31.4%)
CIE-LAB	lab(30.78, 38.43, -64.08)
CIE-LCH	lch(30.78, 74.72, 300.95°)
OKLab	oklab(41.92% 0.0125 -0.1852)
OKLCH	oklch(41.92% 0.186 273.9)
XYZ	xyz(10.5176, 6.5566, 41.2604)
Luminance	0.0656 (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

#3437AF #AFAC34

analogous

#3474AF #3437AF #6F34AF

triadic

#3437AF #AF3437 #37AF34

tetradic

#3437AF #AF3474 #AFAC34 #34AF6F

square

#3437AF #AF3474 #AFAC34 #34AF6F

split-complementary

#3437AF #AF6F34 #74AF34

monochromatic

#181951 #262880 #3437AF #5457CC #8385DA

Accessibility & contrast

On white

9.08

#3437AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3437AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437AF

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437AF	#FFFFFF	#000000	##FFFFFF
##3437AF	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB3

Deuteranopia (green-blind)

#0043AD

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3437af;
/* rgb */ color: rgb(52, 55, 175);
/* oklch */ color: oklch(41.9% 0.186 273.9);

Tailwind

colors: {
  custom: {
    50: '#7d6ec8',
    500: '#3437af',
    950: '#000000',
  },
}

SCSS

$custom: #3437af;
$custom-light: #7d6ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#3437af",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 175
  },
  "hsl": {
    "h": 238.537,
    "s": 54.185,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41917,
    "c": 0.1856,
    "h": 273.9
  },
  "luminance": 0.06558
}

Semantic roles & 50–950 ramp

primary

#3437AF

secondary

#C4C27B

accent

#DA4ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3437AF

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

Preview Lab → · Contrast checker → · Palette generator →