#3799D8#3799D8

#3799D8 is a light, vivid cyan. Relative luminance 0.286; OKLCH L 65.5% C 0.130 H 241.3°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3799D8
RGB	rgb(55, 153, 216)
HSL	hsl(203, 67%, 53%)
HSV	hsv(203, 75%, 85%)
CMYK	cmyk(74.5%, 29.2%, 0%, 15.3%)
CIE-LAB	lab(60.38, -7.36, -40.20)
CIE-LCH	lch(60.38, 40.87, 259.63°)
OKLab	oklab(65.46% -0.0622 -0.1137)
OKLCH	oklch(65.46% 0.13 241.3)
XYZ	xyz(25.3566, 28.5496, 69.1267)
Luminance	0.2855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3799D8 #D87637

analogous

#37D8C6 #3799D8 #3748D8

triadic

#3799D8 #D83799 #99D837

tetradic

#3799D8 #C637D8 #D87637 #48D837

square

#3799D8 #C637D8 #D87637 #48D837

split-complementary

#3799D8 #D83748 #D8C637

monochromatic

#18557C #2278B0 #3799D8 #6AB3E2 #9DCDEC

Accessibility & contrast

On white

3.13

#3799D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#3799D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3799D8

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3799D8	#FFFFFF	#000000	##000000
##3799D8	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9ADB

Deuteranopia (green-blind)

#668BD7

Tritanopia (blue-blind)

#00A9AF

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3799d8;
/* rgb */ color: rgb(55, 153, 216);
/* oklch */ color: oklch(65.5% 0.130 241.3);

Tailwind

colors: {
  custom: {
    50: '#83b6e4',
    500: '#3799d8',
    950: '#000000',
  },
}

SCSS

$custom: #3799d8;
$custom-light: #83b6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3799d8",
  "rgb": {
    "r": 55,
    "g": 153,
    "b": 216
  },
  "hsl": {
    "h": 203.478,
    "s": 67.364,
    "l": 53.137
  },
  "oklch": {
    "l": 0.65462,
    "c": 0.12962,
    "h": 241.3
  },
  "luminance": 0.28553
}

Semantic roles & 50–950 ramp

primary

#3799D8

secondary

#D8AE93

accent

#813EEA

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1115

muted

#7D8084

Preview Lab

Preview with #3799D8

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

Preview Lab → · Contrast checker → · Palette generator →