#3735B9#3735B9

#3735B9 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.8% C 0.200 H 274.6°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#3735B9
RGB	rgb(55, 53, 185)
HSL	hsl(241, 55%, 47%)
HSV	hsv(241, 71%, 73%)
CMYK	cmyk(70.3%, 71.4%, 0%, 27.5%)
CIE-LAB	lab(31.49, 43.35, -68.85)
CIE-LCH	lch(31.49, 81.36, 302.20°)
OKLab	oklab(42.77% 0.016 -0.199)
OKLCH	oklch(42.77% 0.2 274.6)
XYZ	xyz(11.6027, 6.8601, 46.6022)
Luminance	0.0686 (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

#3735B9 #B7B935

analogous

#3575B9 #3735B9 #7935B9

triadic

#3735B9 #B93735 #35B937

tetradic

#3735B9 #B93575 #B7B935 #35B979

square

#3735B9 #B93575 #B7B935 #35B979

split-complementary

#3735B9 #B97935 #75B935

monochromatic

#1B1A5A #292789 #3735B9 #5D5BD0 #8C8BDE

Accessibility & contrast

On white

8.85

#3735B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3735B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3735B9

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3735B9	#FFFFFF	#000000	##FFFFFF
##3735B9	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BD

Deuteranopia (green-blind)

#0044B7

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3735b9;
/* rgb */ color: rgb(55, 53, 185);
/* oklch */ color: oklch(42.8% 0.200 274.6);

Tailwind

colors: {
  custom: {
    50: '#806ecf',
    500: '#3735b9',
    950: '#000000',
  },
}

SCSS

$custom: #3735b9;
$custom-light: #806ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3735b9",
  "rgb": {
    "r": 55,
    "g": 53,
    "b": 185
  },
  "hsl": {
    "h": 240.909,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.42768,
    "c": 0.19968,
    "h": 274.6
  },
  "luminance": 0.06861
}

Semantic roles & 50–950 ramp

primary

#3735B9

secondary

#C7C882

accent

#DF49DD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3735B9

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

Preview Lab → · Contrast checker → · Palette generator →