#3378BD#3378BD

#3378BD is a mid, vivid cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.128 H 251.2°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3378BD
RGB	rgb(51, 120, 189)
HSL	hsl(210, 58%, 47%)
HSV	hsv(210, 73%, 74%)
CMYK	cmyk(73%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(49.26, 1.85, -42.45)
CIE-LCH	lch(49.26, 42.50, 272.50°)
OKLab	oklab(56.23% -0.0412 -0.1208)
OKLCH	oklch(56.23% 0.128 251.2)
XYZ	xyz(17.2636, 17.8089, 50.6619)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3378BD #BD7833

analogous

#33BDBD #3378BD #3333BD

triadic

#3378BD #BD3378 #78BD33

tetradic

#3378BD #BD33BD #BD7833 #33BD33

square

#3378BD #BD33BD #BD7833 #33BD33

split-complementary

#3378BD #BD3333 #BDBD33

monochromatic

#193B5D #26598D #3378BD #5B97D3 #8BB5E0

Accessibility & contrast

On white

4.60

#3378BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3378BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3378BD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3378BD	#FFFFFF	#000000	##FFFFFF
##3378BD	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CC0

Deuteranopia (green-blind)

#446FBC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3378bd;
/* rgb */ color: rgb(51, 120, 189);
/* oklch */ color: oklch(56.2% 0.128 251.2);

Tailwind

colors: {
  custom: {
    50: '#7c9ed1',
    500: '#3378bd',
    950: '#000000',
  },
}

SCSS

$custom: #3378bd;
$custom-light: #7c9ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3378bd",
  "rgb": {
    "r": 51,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 210,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56234,
    "c": 0.12763,
    "h": 251.2
  },
  "luminance": 0.17811
}

Semantic roles & 50–950 ramp

primary

#3378BD

secondary

#CAA682

accent

#9447E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3378BD

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

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