#3799DA#3799DA

#3799DA is a light, vivid cyan. Relative luminance 0.287; OKLCH L 65.6% C 0.132 H 242.2°. Best body text is #000000 at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3799DA
RGB	rgb(55, 153, 218)
HSL	hsl(204, 69%, 54%)
HSV	hsv(204, 75%, 85%)
CMYK	cmyk(74.8%, 29.8%, 0%, 14.5%)
CIE-LAB	lab(60.47, -6.66, -41.17)
CIE-LCH	lch(60.47, 41.70, 260.81°)
OKLab	oklab(65.57% -0.0616 -0.1166)
OKLCH	oklch(65.57% 0.132 242.2)
XYZ	xyz(25.6167, 28.6536, 70.4967)
Luminance	0.2866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3799DA #DA7837

analogous

#37DAC9 #3799DA #3747DA

triadic

#3799DA #DA3799 #99DA37

tetradic

#3799DA #C937DA #DA7837 #47DA37

square

#3799DA #C937DA #DA7837 #47DA37

split-complementary

#3799DA #DA3747 #DAC937

monochromatic

#18567F #2179B3 #3799DA #6BB3E4 #9ECEED

Accessibility & contrast

On white

3.12

#3799DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.73

#3799DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3799DA

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3799DA	#FFFFFF	#000000	##000000
##3799DA	1.00	3.12	6.73	6.73
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.73	21.00	1.00	1.00
##000000	6.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B9ADD

Deuteranopia (green-blind)

#648BD9

Tritanopia (blue-blind)

#00A9B0

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3799da;
/* rgb */ color: rgb(55, 153, 218);
/* oklch */ color: oklch(65.6% 0.132 242.2);

Tailwind

colors: {
  custom: {
    50: '#83b6e5',
    500: '#3799da',
    950: '#000000',
  },
}

SCSS

$custom: #3799da;
$custom-light: #83b6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3799da",
  "rgb": {
    "r": 55,
    "g": 153,
    "b": 218
  },
  "hsl": {
    "h": 203.926,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.65566,
    "c": 0.13182,
    "h": 242.2
  },
  "luminance": 0.28657
}

Semantic roles & 50–950 ramp

primary

#3799DA

secondary

#D9AF93

accent

#823CEC

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1116

muted

#7D8084

Preview Lab

Preview with #3799DA

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

Preview Lab → · Contrast checker → · Palette generator →