#3778C3#3778C3

#3778C3 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.134 H 253.9°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3778C3
RGB	rgb(55, 120, 195)
HSL	hsl(212, 56%, 49%)
HSV	hsv(212, 72%, 76%)
CMYK	cmyk(71.8%, 38.5%, 0%, 23.5%)
CIE-LAB	lab(49.72, 4.60, -45.17)
CIE-LCH	lch(49.72, 45.41, 275.82°)
OKLab	oklab(56.73% -0.0371 -0.1287)
OKLCH	oklch(56.73% 0.134 253.9)
XYZ	xyz(18.1387, 18.1833, 54.1730)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3778C3 #C38237

analogous

#37BEC3 #3778C3 #3C37C3

triadic

#3778C3 #C33778 #78C337

tetradic

#3778C3 #C337BE #C38237 #37C33C

square

#3778C3 #C337BE #C38237 #37C33C

split-complementary

#3778C3 #C33C37 #BEC337

monochromatic

#1C3D64 #2A5B93 #3778C3 #6498D3 #94B7E1

Accessibility & contrast

On white

4.53

#3778C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3778C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3778C3

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3778C3	#FFFFFF	#000000	##000000
##3778C3	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#557DC6

Deuteranopia (green-blind)

#4070C1

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3778c3;
/* rgb */ color: rgb(55, 120, 195);
/* oklch */ color: oklch(56.7% 0.134 253.9);

Tailwind

colors: {
  custom: {
    50: '#7f9ed5',
    500: '#3778c3',
    950: '#000000',
  },
}

SCSS

$custom: #3778c3;
$custom-light: #7f9ed5;
$custom-dark: #000000;

JSON

{
  "hex": "#3778c3",
  "rgb": {
    "r": 55,
    "g": 120,
    "b": 195
  },
  "hsl": {
    "h": 212.143,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.56731,
    "c": 0.13395,
    "h": 253.9
  },
  "luminance": 0.18185
}

Semantic roles & 50–950 ramp

primary

#3778C3

secondary

#CCAD8A

accent

#9949DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3778C3

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

Preview Lab → · Contrast checker → · Palette generator →