#3373DC#3373DC

#3373DC is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.1% C 0.174 H 259.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3373DC
RGB	rgb(51, 115, 220)
HSL	hsl(217, 71%, 53%)
HSV	hsv(217, 77%, 86%)
CMYK	cmyk(76.8%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(49.65, 16.42, -59.52)
CIE-LCH	lch(49.65, 61.74, 285.42°)
OKLab	oklab(57.12% -0.0305 -0.171)
OKLCH	oklch(57.12% 0.174 259.9)
XYZ	xyz(20.4095, 18.1302, 70.1201)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3373DC #DC9C33

analogous

#33C7DC #3373DC #4733DC

triadic

#3373DC #DC3373 #73DC33

tetradic

#3373DC #DC33C7 #DC9C33 #33DC47

square

#3373DC #DC33C7 #DC9C33 #33DC47

split-complementary

#3373DC #DC4733 #C7DC33

monochromatic

#163E7F #1F57B3 #3373DC #6797E5 #9BBBEE

Accessibility & contrast

On white

4.54

#3373DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3373DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3373DC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3373DC	#FFFFFF	#000000	##000000
##3373DC	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387EE0

Deuteranopia (green-blind)

#006FDA

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3373dc;
/* rgb */ color: rgb(51, 115, 220);
/* oklch */ color: oklch(57.1% 0.174 259.9);

Tailwind

colors: {
  custom: {
    50: '#839ae7',
    500: '#3373dc',
    950: '#000000',
  },
}

SCSS

$custom: #3373dc;
$custom-light: #839ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#3373dc",
  "rgb": {
    "r": 51,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 217.278,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.57122,
    "c": 0.1737,
    "h": 259.9
  },
  "luminance": 0.18133
}

Semantic roles & 50–950 ramp

primary

#3373DC

secondary

#DABE91

accent

#AA3AED

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3373DC

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

Preview Lab → · Contrast checker → · Palette generator →