#3378B6#3378B6

#3378B6 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.119 H 248.7°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3378B6
RGB	rgb(51, 120, 182)
HSL	hsl(208, 56%, 46%)
HSV	hsv(208, 72%, 71%)
CMYK	cmyk(72%, 34.1%, 0%, 28.6%)
CIE-LAB	lab(48.90, -0.69, -38.99)
CIE-LCH	lch(48.90, 39.00, 268.99°)
OKLab	oklab(55.83% -0.0431 -0.1107)
OKLCH	oklch(55.83% 0.119 248.7)
XYZ	xyz(16.5220, 17.5123, 46.7564)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378B6 #B67133

analogous

#33B6B2 #3378B6 #3336B6

triadic

#3378B6 #B63378 #78B633

tetradic

#3378B6 #B233B6 #B67133 #36B633

square

#3378B6 #B233B6 #B67133 #36B633

split-complementary

#3378B6 #B63336 #B6B233

monochromatic

#183956 #265886 #3378B6 #5696D0 #86B4DD

Accessibility & contrast

On white

4.66

#3378B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3378B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3378B6

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378B6	#FFFFFF	#000000	##FFFFFF
##3378B6	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7BB9

Deuteranopia (green-blind)

#496FB5

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3378b6;
/* rgb */ color: rgb(51, 120, 182);
/* oklch */ color: oklch(55.8% 0.119 248.7);

Tailwind

colors: {
  custom: {
    50: '#7b9ecc',
    500: '#3378b6',
    950: '#000000',
  },
}

SCSS

$custom: #3378b6;
$custom-light: #7b9ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3378b6",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 182
  },
  "hsl": {
    "h": 208.397,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55829,
    "c": 0.11878,
    "h": 248.7
  },
  "luminance": 0.17514
}

Semantic roles & 50–950 ramp

primary

#3378B6

secondary

#C7A07E

accent

#9048E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3378B6

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

Preview Lab → · Contrast checker → · Palette generator →