#3791B7#3791B7

#3791B7 is a mid, moderate cyan. Relative luminance 0.245; OKLCH L 62.0% C 0.101 H 229.7°. Best body text is #000000 at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3791B7
RGB	rgb(55, 145, 183)
HSL	hsl(198, 54%, 47%)
HSV	hsv(198, 70%, 72%)
CMYK	cmyk(69.9%, 20.8%, 0%, 28.2%)
CIE-LAB	lab(56.56, -14.18, -27.58)
CIE-LCH	lch(56.56, 31.01, 242.79°)
OKLab	oklab(61.95% -0.0655 -0.0773)
OKLCH	oklch(61.95% 0.101 229.7)
XYZ	xyz(20.2448, 24.4797, 48.4487)
Luminance	0.2448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791B7 #B75D37

analogous

#37B79D #3791B7 #3751B7

triadic

#3791B7 #B73791 #91B737

tetradic

#3791B7 #9D37B7 #B75D37 #51B737

square

#3791B7 #9D37B7 #B75D37 #51B737

split-complementary

#3791B7 #B73751 #B79D37

monochromatic

#1B4659 #296C88 #3791B7 #5DADCE #8CC5DC

Accessibility & contrast

On white

3.56

#3791B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.90

#3791B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791B7

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791B7	#FFFFFF	#000000	##000000
##3791B7	1.00	3.56	5.90	5.90
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.90	21.00	1.00	1.00
##000000	5.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8FB9

Deuteranopia (green-blind)

#6C82B6

Tritanopia (blue-blind)

#009C9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3791b7;
/* rgb */ color: rgb(55, 145, 183);
/* oklch */ color: oklch(62.0% 0.101 229.7);

Tailwind

colors: {
  custom: {
    50: '#7eb1cc',
    500: '#3791b7',
    950: '#000000',
  },
}

SCSS

$custom: #3791b7;
$custom-light: #7eb1cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3791b7",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 183
  },
  "hsl": {
    "h": 197.813,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.61952,
    "c": 0.10135,
    "h": 229.7
  },
  "luminance": 0.24482
}

Semantic roles & 50–950 ramp

primary

#3791B7

secondary

#C79783

accent

#764BDD

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3791B7

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

Preview Lab → · Contrast checker → · Palette generator →