#3787C6#3787C6

#3787C6 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.3% C 0.123 H 245.8°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3787C6
RGB	rgb(55, 135, 198)
HSL	hsl(206, 57%, 50%)
HSV	hsv(206, 72%, 78%)
CMYK	cmyk(72.2%, 31.8%, 0%, 22.4%)
CIE-LAB	lab(54.25, -3.32, -39.71)
CIE-LCH	lch(54.25, 39.85, 265.23°)
OKLab	oklab(60.34% -0.0506 -0.1125)
OKLCH	oklch(60.34% 0.123 245.8)
XYZ	xyz(20.4287, 22.2151, 56.6264)
Luminance	0.2222 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787C6 #C67637

analogous

#37C6BE #3787C6 #373FC6

triadic

#3787C6 #C63787 #87C637

tetradic

#3787C6 #BE37C6 #C67637 #3FC637

square

#3787C6 #BE37C6 #C67637 #3FC637

split-complementary

#3787C6 #C6373F #C6BE37

monochromatic

#1C4666 #2A6696 #3787C6 #66A4D4 #96C0E2

Accessibility & contrast

On white

3.86

#3787C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3787C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787C6

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787C6	#FFFFFF	#000000	##000000
##3787C6	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A89C9

Deuteranopia (green-blind)

#567CC5

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3787c6;
/* rgb */ color: rgb(55, 135, 198);
/* oklch */ color: oklch(60.3% 0.123 245.8);

Tailwind

colors: {
  custom: {
    50: '#80a9d7',
    500: '#3787c6',
    950: '#000000',
  },
}

SCSS

$custom: #3787c6;
$custom-light: #80a9d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3787c6",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 198
  },
  "hsl": {
    "h": 206.434,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.6034,
    "c": 0.12337,
    "h": 245.8
  },
  "luminance": 0.22217
}

Semantic roles & 50–950 ramp

primary

#3787C6

secondary

#CDA98C

accent

#8B48E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3787C6

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

Preview Lab → · Contrast checker → · Palette generator →