#3798D8#3798D8

#3798D8 is a light, vivid cyan. Relative luminance 0.282; OKLCH L 65.2% C 0.130 H 242.0°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3798D8
RGB	rgb(55, 152, 216)
HSL	hsl(204, 67%, 53%)
HSV	hsv(204, 75%, 85%)
CMYK	cmyk(74.5%, 29.6%, 0%, 15.3%)
CIE-LAB	lab(60.09, -6.79, -40.66)
CIE-LCH	lch(60.09, 41.22, 260.52°)
OKLab	oklab(65.23% -0.0612 -0.1151)
OKLCH	oklch(65.23% 0.13 242)
XYZ	xyz(25.1936, 28.2236, 69.0723)
Luminance	0.2823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3798D8 #D87737

analogous

#37D8C7 #3798D8 #3747D8

triadic

#3798D8 #D83798 #98D837

tetradic

#3798D8 #C737D8 #D87737 #47D837

square

#3798D8 #C737D8 #D87737 #47D837

split-complementary

#3798D8 #D83747 #D8C737

monochromatic

#18557C #2277B0 #3798D8 #6AB2E2 #9DCDEC

Accessibility & contrast

On white

3.16

#3798D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#3798D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3798D8

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3798D8	#FFFFFF	#000000	##000000
##3798D8	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A99DB

Deuteranopia (green-blind)

#648AD7

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #3798d8;
/* rgb */ color: rgb(55, 152, 216);
/* oklch */ color: oklch(65.2% 0.130 242.0);

Tailwind

colors: {
  custom: {
    50: '#83b6e4',
    500: '#3798d8',
    950: '#000000',
  },
}

SCSS

$custom: #3798d8;
$custom-light: #83b6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3798d8",
  "rgb": {
    "r": 55,
    "g": 152,
    "b": 216
  },
  "hsl": {
    "h": 203.851,
    "s": 67.364,
    "l": 53.137
  },
  "oklch": {
    "l": 0.65231,
    "c": 0.13036,
    "h": 242
  },
  "luminance": 0.28227
}

Semantic roles & 50–950 ramp

primary

#3798D8

secondary

#D8AE93

accent

#823EEA

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1115

muted

#7D8084

Preview Lab

Preview with #3798D8

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

Preview Lab → · Contrast checker → · Palette generator →