#3786CB#3786CB

#3786CB is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.4% C 0.130 H 248.3°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3786CB
RGB	rgb(55, 134, 203)
HSL	hsl(208, 59%, 51%)
HSV	hsv(208, 73%, 80%)
CMYK	cmyk(72.9%, 34%, 0%, 20.4%)
CIE-LAB	lab(54.21, -0.95, -42.62)
CIE-LCH	lch(54.21, 42.63, 268.72°)
OKLab	oklab(60.39% -0.0482 -0.121)
OKLCH	oklch(60.39% 0.13 248.3)
XYZ	xyz(20.8761, 22.1719, 59.6677)
Luminance	0.2217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3786CB #CB7C37

analogous

#37CBC6 #3786CB #373CCB

triadic

#3786CB #CB3786 #86CB37

tetradic

#3786CB #C637CB #CB7C37 #3CCB37

square

#3786CB #C637CB #CB7C37 #3CCB37

split-complementary

#3786CB #CB373C #CBC637

monochromatic

#1C466C #29669C #3786CB #68A3D8 #98C1E4

Accessibility & contrast

On white

3.86

#3786CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3786CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3786CB

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3786CB	#FFFFFF	#000000	##000000
##3786CB	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)

#6789CE

Deuteranopia (green-blind)

#517BCA

Tritanopia (blue-blind)

#00969F

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3786cb;
/* rgb */ color: rgb(55, 134, 203);
/* oklch */ color: oklch(60.4% 0.130 248.3);

Tailwind

colors: {
  custom: {
    50: '#80a8db',
    500: '#3786cb',
    950: '#000000',
  },
}

SCSS

$custom: #3786cb;
$custom-light: #80a8db;
$custom-dark: #000000;

JSON

{
  "hex": "#3786cb",
  "rgb": {
    "r": 55,
    "g": 134,
    "b": 203
  },
  "hsl": {
    "h": 207.973,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.60386,
    "c": 0.13027,
    "h": 248.3
  },
  "luminance": 0.22174
}

Semantic roles & 50–950 ramp

primary

#3786CB

secondary

#D0AD8E

accent

#8F46E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3786CB

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

Preview Lab → · Contrast checker → · Palette generator →