#3378B7#3378B7

#3378B7 is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 55.9% C 0.120 H 249.1°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3378B7
RGB	rgb(51, 120, 183)
HSL	hsl(209, 56%, 46%)
HSV	hsv(209, 72%, 72%)
CMYK	cmyk(72.1%, 34.4%, 0%, 28.2%)
CIE-LAB	lab(48.95, -0.33, -39.49)
CIE-LCH	lch(48.95, 39.49, 269.52°)
OKLab	oklab(55.89% -0.0428 -0.1121)
OKLCH	oklch(55.89% 0.12 249.1)
XYZ	xyz(16.6257, 17.5538, 47.3026)
Luminance	0.1756 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378B7 #B77233

analogous

#33B7B4 #3378B7 #3336B7

triadic

#3378B7 #B73378 #78B733

tetradic

#3378B7 #B433B7 #B77233 #36B733

square

#3378B7 #B433B7 #B77233 #36B733

split-complementary

#3378B7 #B73336 #B7B433

monochromatic

#183957 #265987 #3378B7 #5796D0 #87B4DE

Accessibility & contrast

On white

4.66

#3378B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3378B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3378B7

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378B7	#FFFFFF	#000000	##FFFFFF
##3378B7	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7BBA

Deuteranopia (green-blind)

#496FB6

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3378b7;
/* rgb */ color: rgb(51, 120, 183);
/* oklch */ color: oklch(55.9% 0.120 249.1);

Tailwind

colors: {
  custom: {
    50: '#7b9ecd',
    500: '#3378b7',
    950: '#000000',
  },
}

SCSS

$custom: #3378b7;
$custom-light: #7b9ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#3378b7",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 183
  },
  "hsl": {
    "h": 208.636,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.55886,
    "c": 0.12003,
    "h": 249.1
  },
  "luminance": 0.17556
}

Semantic roles & 50–950 ramp

primary

#3378B7

secondary

#C7A17F

accent

#9048E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3378B7

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

Preview Lab → · Contrast checker → · Palette generator →