#3371DC#3371DC

#3371DC is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.176 H 260.5°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3371DC
RGB	rgb(51, 113, 220)
HSL	hsl(218, 71%, 53%)
HSV	hsv(218, 77%, 86%)
CMYK	cmyk(76.8%, 48.6%, 0%, 13.7%)
CIE-LAB	lab(49.10, 17.68, -60.40)
CIE-LCH	lch(49.10, 62.94, 286.32°)
OKLab	oklab(56.7% -0.029 -0.1736)
OKLCH	oklch(56.7% 0.176 260.5)
XYZ	xyz(20.1840, 17.6790, 70.0449)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371DC #DC9E33

analogous

#33C5DC #3371DC #4933DC

triadic

#3371DC #DC3371 #71DC33

tetradic

#3371DC #DC33C5 #DC9E33 #33DC49

square

#3371DC #DC33C5 #DC9E33 #33DC49

split-complementary

#3371DC #DC4933 #C5DC33

monochromatic

#163C7F #1F55B3 #3371DC #6795E5 #9BBAEE

Accessibility & contrast

On white

4.63

#3371DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3371DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3371DC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371DC	#FFFFFF	#000000	##FFFFFF
##3371DC	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#327DE0

Deuteranopia (green-blind)

#006DDA

Tritanopia (blue-blind)

#008B9C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3371dc;
/* rgb */ color: rgb(51, 113, 220);
/* oklch */ color: oklch(56.7% 0.176 260.5);

Tailwind

colors: {
  custom: {
    50: '#8399e7',
    500: '#3371dc',
    950: '#000000',
  },
}

SCSS

$custom: #3371dc;
$custom-light: #8399e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3371dc",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 220
  },
  "hsl": {
    "h": 217.988,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.56701,
    "c": 0.17605,
    "h": 260.5
  },
  "luminance": 0.17681
}

Semantic roles & 50–950 ramp

primary

#3371DC

secondary

#DABF91

accent

#AC3AED

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3371DC

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

Preview Lab → · Contrast checker → · Palette generator →