#3378DC#3378DC

#3378DC is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.168 H 258.1°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3378DC
RGB	rgb(51, 120, 220)
HSL	hsl(216, 71%, 53%)
HSV	hsv(216, 77%, 86%)
CMYK	cmyk(76.8%, 45.5%, 0%, 13.7%)
CIE-LAB	lab(51.04, 13.29, -57.29)
CIE-LCH	lch(51.04, 58.81, 283.06°)
OKLab	oklab(58.19% -0.0345 -0.1644)
OKLCH	oklch(58.19% 0.168 258.1)
XYZ	xyz(20.9952, 19.3016, 70.3153)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378DC #DC9733

analogous

#33CCDC #3378DC #4233DC

triadic

#3378DC #DC3378 #78DC33

tetradic

#3378DC #DC33CC #DC9733 #33DC42

square

#3378DC #DC33CC #DC9733 #33DC42

split-complementary

#3378DC #DC4233 #CCDC33

monochromatic

#16417F #1F5BB3 #3378DC #679BE5 #9BBDEE

Accessibility & contrast

On white

4.32

#3378DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#3378DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3378DC

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378DC	#FFFFFF	#000000	##000000
##3378DC	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4382E0

Deuteranopia (green-blind)

#1B72DA

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3378dc;
/* rgb */ color: rgb(51, 120, 220);
/* oklch */ color: oklch(58.2% 0.168 258.1);

Tailwind

colors: {
  custom: {
    50: '#829ee7',
    500: '#3378dc',
    950: '#000000',
  },
}

SCSS

$custom: #3378dc;
$custom-light: #829ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#3378dc",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 220
  },
  "hsl": {
    "h": 215.503,
    "s": 70.711,
    "l": 53.137
  },
  "oklch": {
    "l": 0.58188,
    "c": 0.16794,
    "h": 258.1
  },
  "luminance": 0.19304
}

Semantic roles & 50–950 ramp

primary

#3378DC

secondary

#DABC91

accent

#A43AED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3378DC

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

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