#3734B8#3734B8

#3734B8 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.5% C 0.199 H 274.8°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#3734B8
RGB	rgb(55, 52, 184)
HSL	hsl(241, 56%, 46%)
HSV	hsv(241, 72%, 72%)
CMYK	cmyk(70.1%, 71.7%, 0%, 27.8%)
CIE-LAB	lab(31.18, 43.60, -68.76)
CIE-LCH	lch(31.18, 81.42, 302.38°)
OKLab	oklab(42.52% 0.0167 -0.1988)
OKLCH	oklch(42.52% 0.199 274.8)
XYZ	xyz(11.4524, 6.7278, 46.0332)
Luminance	0.0673 (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

#3734B8 #B5B834

analogous

#3473B8 #3734B8 #7934B8

triadic

#3734B8 #B83734 #34B837

tetradic

#3734B8 #B83473 #B5B834 #34B879

square

#3734B8 #B83473 #B5B834 #34B879

split-complementary

#3734B8 #B87934 #73B834

monochromatic

#1A1959 #292788 #3734B8 #5C59D0 #8B89DE

Accessibility & contrast

On white

8.95

#3734B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3734B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734B8

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734B8	#FFFFFF	#000000	##FFFFFF
##3734B8	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBC

Deuteranopia (green-blind)

#0043B6

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3734b8;
/* rgb */ color: rgb(55, 52, 184);
/* oklch */ color: oklch(42.5% 0.199 274.8);

Tailwind

colors: {
  custom: {
    50: '#806dcf',
    500: '#3734b8',
    950: '#000000',
  },
}

SCSS

$custom: #3734b8;
$custom-light: #806dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3734b8",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 184
  },
  "hsl": {
    "h": 241.364,
    "s": 55.932,
    "l": 46.275
  },
  "oklch": {
    "l": 0.42519,
    "c": 0.19948,
    "h": 274.8
  },
  "luminance": 0.06729
}

Semantic roles & 50–950 ramp

primary

#3734B8

secondary

#C6C880

accent

#DF49DC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3734B8

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

Preview Lab → · Contrast checker → · Palette generator →