#3791BA#3791BA

#3791BA is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.104 H 231.7°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3791BA
RGB	rgb(55, 145, 186)
HSL	hsl(199, 54%, 47%)
HSV	hsv(199, 70%, 73%)
CMYK	cmyk(70.4%, 22%, 0%, 27.1%)
CIE-LAB	lab(56.69, -13.17, -29.09)
CIE-LCH	lch(56.69, 31.93, 245.64°)
OKLab	oklab(62.09% -0.0644 -0.0817)
OKLCH	oklch(62.09% 0.104 231.7)
XYZ	xyz(20.5603, 24.6059, 50.1107)
Luminance	0.2461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791BA #BA6037

analogous

#37BAA2 #3791BA #374FBA

triadic

#3791BA #BA3791 #91BA37

tetradic

#3791BA #A237BA #BA6037 #4FBA37

square

#3791BA #A237BA #BA6037 #4FBA37

split-complementary

#3791BA #BA374F #BAA237

monochromatic

#1B475C #296C8B #3791BA #5FACD0 #8EC5DE

Accessibility & contrast

On white

3.55

#3791BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#3791BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791BA

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791BA	#FFFFFF	#000000	##000000
##3791BA	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBC

Deuteranopia (green-blind)

#6B82B9

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3791ba;
/* rgb */ color: rgb(55, 145, 186);
/* oklch */ color: oklch(62.1% 0.104 231.7);

Tailwind

colors: {
  custom: {
    50: '#7eb1cf',
    500: '#3791ba',
    950: '#000000',
  },
}

SCSS

$custom: #3791ba;
$custom-light: #7eb1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3791ba",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 186
  },
  "hsl": {
    "h": 198.779,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.62093,
    "c": 0.10402,
    "h": 231.7
  },
  "luminance": 0.24608
}

Semantic roles & 50–950 ramp

primary

#3791BA

secondary

#C89A85

accent

#784ADE

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3791BA

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

Preview Lab → · Contrast checker → · Palette generator →