#3337CF#3337CF

#3337CF is a mid, highly saturated blue. Relative luminance 0.079; OKLCH L 45.1% C 0.225 H 271.7°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#3337CF
RGB	rgb(51, 55, 207)
HSL	hsl(238, 62%, 51%)
HSV	hsv(238, 75%, 81%)
CMYK	cmyk(75.4%, 73.4%, 0%, 18.8%)
CIE-LAB	lab(33.86, 49.10, -77.84)
CIE-LCH	lch(33.86, 92.03, 302.24°)
OKLab	oklab(45.05% 0.0068 -0.2253)
OKLCH	oklch(45.05% 0.225 271.7)
XYZ	xyz(13.9901, 7.9397, 59.8146)
Luminance	0.0794 (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

#3337CF #CFCB33

analogous

#3385CF #3337CF #7D33CF

triadic

#3337CF #CF3337 #37CF33

tetradic

#3337CF #CF3385 #CFCB33 #33CF7D

square

#3337CF #CF3385 #CFCB33 #33CF7D

split-complementary

#3337CF #CF7D33 #85CF33

monochromatic

#1A1C6E #25299F #3337CF #6568DB #9698E6

Accessibility & contrast

On white

8.11

#3337CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3337CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3337CF

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3337CF	#FFFFFF	#000000	##FFFFFF
##3337CF	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D3

Deuteranopia (green-blind)

#0048CC

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3337cf;
/* rgb */ color: rgb(51, 55, 207);
/* oklch */ color: oklch(45.1% 0.225 271.7);

Tailwind

colors: {
  custom: {
    50: '#8470df',
    500: '#3337cf',
    950: '#000000',
  },
}

SCSS

$custom: #3337cf;
$custom-light: #8470df;
$custom-dark: #000000;

JSON

{
  "hex": "#3337cf",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 207
  },
  "hsl": {
    "h": 238.462,
    "s": 61.905,
    "l": 50.588
  },
  "oklch": {
    "l": 0.45054,
    "c": 0.22543,
    "h": 271.7
  },
  "luminance": 0.07941
}

Semantic roles & 50–950 ramp

primary

#3337CF

secondary

#D2D08C

accent

#E143E5

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3337CF

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

Preview Lab → · Contrast checker → · Palette generator →