#3378CE#3378CE

#3378CE is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.3% C 0.150 H 255.6°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3378CE
RGB	rgb(51, 120, 206)
HSL	hsl(213, 61%, 50%)
HSV	hsv(213, 75%, 81%)
CMYK	cmyk(75.2%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.20, 8.10, -50.69)
CIE-LCH	lch(50.20, 51.33, 279.08°)
OKLab	oklab(57.27% -0.0372 -0.1449)
OKLCH	oklch(57.27% 0.15 255.6)
XYZ	xyz(19.2182, 18.5908, 60.9561)
Luminance	0.1859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378CE #CE8933

analogous

#33C6CE #3378CE #3B33CE

triadic

#3378CE #CE3378 #78CE33

tetradic

#3378CE #CE33C6 #CE8933 #33CE3B

square

#3378CE #CE33C6 #CE8933 #33CE3B

split-complementary

#3378CE #CE3B33 #C6CE33

monochromatic

#1A3F6D #265B9E #3378CE #6499DA #96B9E6

Accessibility & contrast

On white

4.45

#3378CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#3378CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3378CE

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378CE	#FFFFFF	#000000	##000000
##3378CE	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7FD1

Deuteranopia (green-blind)

#3371CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3378ce;
/* rgb */ color: rgb(51, 120, 206);
/* oklch */ color: oklch(57.3% 0.150 255.6);

Tailwind

colors: {
  custom: {
    50: '#809edd',
    500: '#3378ce',
    950: '#000000',
  },
}

SCSS

$custom: #3378ce;
$custom-light: #809edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3378ce",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 213.29,
    "s": 61.265,
    "l": 50.392
  },
  "oklch": {
    "l": 0.57274,
    "c": 0.14964,
    "h": 255.6
  },
  "luminance": 0.18593
}

Semantic roles & 50–950 ramp

primary

#3378CE

secondary

#D1B28C

accent

#9D43E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3378CE

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

Preview Lab → · Contrast checker → · Palette generator →