#3787C5#3787C5

#3787C5 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.3% C 0.122 H 245.4°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3787C5
RGB	rgb(55, 135, 197)
HSL	hsl(206, 56%, 49%)
HSV	hsv(206, 72%, 77%)
CMYK	cmyk(72.1%, 31.5%, 0%, 22.7%)
CIE-LAB	lab(54.21, -3.67, -39.22)
CIE-LCH	lch(54.21, 39.39, 264.65°)
OKLab	oklab(60.29% -0.0509 -0.1111)
OKLCH	oklch(60.29% 0.122 245.4)
XYZ	xyz(20.3137, 22.1691, 56.0210)
Luminance	0.2217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787C5 #C57537

analogous

#37C5BC #3787C5 #3740C5

triadic

#3787C5 #C53787 #87C537

tetradic

#3787C5 #BC37C5 #C57537 #40C537

square

#3787C5 #BC37C5 #C57537 #40C537

split-complementary

#3787C5 #C53740 #C5BC37

monochromatic

#1C4565 #2A6695 #3787C5 #65A4D4 #95C0E1

Accessibility & contrast

On white

3.86

#3787C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3787C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787C5

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787C5	#FFFFFF	#000000	##000000
##3787C5	1.00	3.86	5.43	5.43
#FFFFFF	3.86	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)

#6B89C8

Deuteranopia (green-blind)

#577CC4

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3787c5;
/* rgb */ color: rgb(55, 135, 197);
/* oklch */ color: oklch(60.3% 0.122 245.4);

Tailwind

colors: {
  custom: {
    50: '#7fa9d7',
    500: '#3787c5',
    950: '#000000',
  },
}

SCSS

$custom: #3787c5;
$custom-light: #7fa9d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3787c5",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 197
  },
  "hsl": {
    "h": 206.197,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60286,
    "c": 0.12219,
    "h": 245.4
  },
  "luminance": 0.22171
}

Semantic roles & 50–950 ramp

primary

#3787C5

secondary

#CDA88B

accent

#8A48E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3787C5

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

Preview Lab → · Contrast checker → · Palette generator →