#3337B5#3337B5

#3337B5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.194 H 273.1°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#3337B5
RGB	rgb(51, 55, 181)
HSL	hsl(238, 56%, 45%)
HSV	hsv(238, 72%, 71%)
CMYK	cmyk(71.8%, 69.6%, 0%, 29%)
CIE-LAB	lab(31.28, 40.38, -66.83)
CIE-LCH	lch(31.28, 78.08, 301.14°)
OKLab	oklab(42.44% 0.0106 -0.1932)
OKLCH	oklch(42.44% 0.194 273.1)
XYZ	xyz(11.0691, 6.7713, 44.4307)
Luminance	0.0677 (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

#3337B5 #B5B133

analogous

#3378B5 #3337B5 #7033B5

triadic

#3337B5 #B53337 #37B533

tetradic

#3337B5 #B53378 #B5B133 #33B570

square

#3337B5 #B53378 #B5B133 #33B570

split-complementary

#3337B5 #B57033 #78B533

monochromatic

#181A56 #262885 #3337B5 #565ACF #8688DD

Accessibility & contrast

On white

8.92

#3337B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3337B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3337B5

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3337B5	#FFFFFF	#000000	##FFFFFF
##3337B5	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B9

Deuteranopia (green-blind)

#0043B3

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3337b5;
/* rgb */ color: rgb(51, 55, 181);
/* oklch */ color: oklch(42.4% 0.194 273.1);

Tailwind

colors: {
  custom: {
    50: '#7e6fcc',
    500: '#3337b5',
    950: '#000000',
  },
}

SCSS

$custom: #3337b5;
$custom-light: #7e6fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3337b5",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 238.154,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.42437,
    "c": 0.19352,
    "h": 273.1
  },
  "luminance": 0.06772
}

Semantic roles & 50–950 ramp

primary

#3337B5

secondary

#C6C47D

accent

#DB48DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3337B5

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

Preview Lab → · Contrast checker → · Palette generator →