#3787C4#3787C4

#3787C4 is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.121 H 245.0°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3787C4
RGB	rgb(55, 135, 196)
HSL	hsl(206, 56%, 49%)
HSV	hsv(206, 72%, 77%)
CMYK	cmyk(71.9%, 31.1%, 0%, 23.1%)
CIE-LAB	lab(54.16, -4.02, -38.72)
CIE-LCH	lch(54.16, 38.93, 264.07°)
OKLab	oklab(60.23% -0.0512 -0.1096)
OKLCH	oklch(60.23% 0.121 245)
XYZ	xyz(20.1995, 22.1234, 55.4195)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787C4 #C47437

analogous

#37C4BA #3787C4 #3741C4

triadic

#3787C4 #C43787 #87C437

tetradic

#3787C4 #BA37C4 #C47437 #41C437

square

#3787C4 #BA37C4 #C47437 #41C437

split-complementary

#3787C4 #C43741 #C4BA37

monochromatic

#1C4564 #2A6694 #3787C4 #65A4D4 #94C0E1

Accessibility & contrast

On white

3.87

#3787C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3787C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787C4

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787C4	#FFFFFF	#000000	##000000
##3787C4	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B89C7

Deuteranopia (green-blind)

#587BC3

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3787c4;
/* rgb */ color: rgb(55, 135, 196);
/* oklch */ color: oklch(60.2% 0.121 245.0);

Tailwind

colors: {
  custom: {
    50: '#7fa9d6',
    500: '#3787c4',
    950: '#000000',
  },
}

SCSS

$custom: #3787c4;
$custom-light: #7fa9d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3787c4",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 196
  },
  "hsl": {
    "h": 205.957,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.60232,
    "c": 0.12101,
    "h": 245
  },
  "luminance": 0.22126
}

Semantic roles & 50–950 ramp

primary

#3787C4

secondary

#CCA78B

accent

#8A48DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3787C4

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

Preview Lab → · Contrast checker → · Palette generator →