#3791CA#3791CA

#3791CA is a light, vivid cyan. Relative luminance 0.253; OKLCH L 62.9% C 0.120 H 240.6°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3791CA
RGB	rgb(55, 145, 202)
HSL	hsl(203, 58%, 50%)
HSV	hsv(203, 73%, 79%)
CMYK	cmyk(72.8%, 28.2%, 0%, 20.8%)
CIE-LAB	lab(57.39, -7.69, -37.05)
CIE-LCH	lch(57.39, 37.84, 258.27°)
OKLab	oklab(62.88% -0.059 -0.1047)
OKLCH	oklch(62.88% 0.12 240.6)
XYZ	xyz(22.3575, 25.3247, 59.5755)
Luminance	0.2533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791CA #CA7037

analogous

#37CAB9 #3791CA #3747CA

triadic

#3791CA #CA3791 #91CA37

tetradic

#3791CA #B937CA #CA7037 #47CA37

square

#3791CA #B937CA #CA7037 #47CA37

split-complementary

#3791CA #CA3747 #CAB937

monochromatic

#1C4C6A #296F9B #3791CA #67ACD7 #98C6E4

Accessibility & contrast

On white

3.46

#3791CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#3791CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791CA

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791CA	#FFFFFF	#000000	##000000
##3791CA	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7792CD

Deuteranopia (green-blind)

#6284C9

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3791ca;
/* rgb */ color: rgb(55, 145, 202);
/* oklch */ color: oklch(62.9% 0.120 240.6);

Tailwind

colors: {
  custom: {
    50: '#81b1da',
    500: '#3791ca',
    950: '#000000',
  },
}

SCSS

$custom: #3791ca;
$custom-light: #81b1da;
$custom-dark: #000000;

JSON

{
  "hex": "#3791ca",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 202
  },
  "hsl": {
    "h": 203.265,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.62881,
    "c": 0.12014,
    "h": 240.6
  },
  "luminance": 0.25327
}

Semantic roles & 50–950 ramp

primary

#3791CA

secondary

#CFA78E

accent

#8346E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3791CA

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

Preview Lab → · Contrast checker → · Palette generator →