#3778C8#3778C8

#3778C8 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.0% C 0.140 H 255.2°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3778C8
RGB	rgb(55, 120, 200)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 73%, 78%)
CMYK	cmyk(72.5%, 40%, 0%, 21.6%)
CIE-LAB	lab(49.99, 6.42, -47.60)
CIE-LCH	lch(49.99, 48.03, 277.68°)
OKLab	oklab(57.04% -0.0359 -0.1358)
OKLCH	oklch(57.04% 0.14 255.2)
XYZ	xyz(18.7135, 18.4132, 57.2002)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3778C8 #C88737

analogous

#37C1C8 #3778C8 #3E37C8

triadic

#3778C8 #C83778 #78C837

tetradic

#3778C8 #C837C1 #C88737 #37C83E

square

#3778C8 #C837C1 #C88737 #37C83E

split-complementary

#3778C8 #C83E37 #C1C837

monochromatic

#1D3E68 #2A5B98 #3778C8 #6798D5 #97B9E2

Accessibility & contrast

On white

4.48

#3778C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3778C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3778C8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3778C8	#FFFFFF	#000000	##000000
##3778C8	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527ECB

Deuteranopia (green-blind)

#3B71C6

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3778c8;
/* rgb */ color: rgb(55, 120, 200);
/* oklch */ color: oklch(57.0% 0.140 255.2);

Tailwind

colors: {
  custom: {
    50: '#809ed9',
    500: '#3778c8',
    950: '#000000',
  },
}

SCSS

$custom: #3778c8;
$custom-light: #809ed9;
$custom-dark: #000000;

JSON

{
  "hex": "#3778c8",
  "rgb": {
    "r": 55,
    "g": 120,
    "b": 200
  },
  "hsl": {
    "h": 213.103,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.57036,
    "c": 0.14049,
    "h": 255.2
  },
  "luminance": 0.18415
}

Semantic roles & 50–950 ramp

primary

#3778C8

secondary

#CEB18D

accent

#9C48E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3778C8

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

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