#3437B6#3437B6

#3437B6 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.6% C 0.195 H 273.4°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#3437B6
RGB	rgb(52, 55, 182)
HSL	hsl(239, 56%, 46%)
HSV	hsv(239, 71%, 71%)
CMYK	cmyk(71.4%, 69.8%, 0%, 28.6%)
CIE-LAB	lab(31.44, 40.83, -67.16)
CIE-LCH	lch(31.44, 78.60, 301.30°)
OKLab	oklab(42.6% 0.0117 -0.1942)
OKLCH	oklch(42.6% 0.195 273.4)
XYZ	xyz(11.2230, 6.8387, 44.9754)
Luminance	0.0684 (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

#3437B6 #B6B334

analogous

#3478B6 #3437B6 #7234B6

triadic

#3437B6 #B63437 #37B634

tetradic

#3437B6 #B63478 #B6B334 #34B672

square

#3437B6 #B63478 #B6B334 #34B672

split-complementary

#3437B6 #B67234 #78B634

monochromatic

#191A57 #262986 #3437B6 #585BCF #888ADD

Accessibility & contrast

On white

8.87

#3437B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3437B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437B6

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437B6	#FFFFFF	#000000	##FFFFFF
##3437B6	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BA

Deuteranopia (green-blind)

#0044B4

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3437b6;
/* rgb */ color: rgb(52, 55, 182);
/* oklch */ color: oklch(42.6% 0.195 273.4);

Tailwind

colors: {
  custom: {
    50: '#7e6fcd',
    500: '#3437b6',
    950: '#000000',
  },
}

SCSS

$custom: #3437b6;
$custom-light: #7e6fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3437b6",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 182
  },
  "hsl": {
    "h": 238.615,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42595,
    "c": 0.19453,
    "h": 273.4
  },
  "luminance": 0.0684
}

Semantic roles & 50–950 ramp

primary

#3437B6

secondary

#C7C57F

accent

#DB49DF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3437B6

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

Preview Lab → · Contrast checker → · Palette generator →