#3791AB#3791AB

#3791AB is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.4% C 0.092 H 220.5°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3791AB
RGB	rgb(55, 145, 171)
HSL	hsl(193, 51%, 44%)
HSV	hsv(193, 68%, 67%)
CMYK	cmyk(67.8%, 15.2%, 0%, 32.9%)
CIE-LAB	lab(56.09, -18.13, -21.47)
CIE-LCH	lch(56.09, 28.10, 229.83°)
OKLab	oklab(61.41% -0.0701 -0.0599)
OKLCH	oklch(61.41% 0.092 220.5)
XYZ	xyz(19.0486, 24.0012, 42.1490)
Luminance	0.2400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791AB #AB5137

analogous

#37AB8B #3791AB #3757AB

triadic

#3791AB #AB3791 #91AB37

tetradic

#3791AB #8B37AB #AB5137 #57AB37

square

#3791AB #8B37AB #AB5137 #57AB37

split-complementary

#3791AB #AB3757 #AB8B37

monochromatic

#19424E #286A7D #3791AB #56AFC9 #85C5D8

Accessibility & contrast

On white

3.62

#3791AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#3791AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791AB

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791AB	#FFFFFF	#000000	##000000
##3791AB	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#818DAC

Deuteranopia (green-blind)

#7181AB

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3791ab;
/* rgb */ color: rgb(55, 145, 171);
/* oklch */ color: oklch(61.4% 0.092 220.5);

Tailwind

colors: {
  custom: {
    50: '#7cb1c4',
    500: '#3791ab',
    950: '#000000',
  },
}

SCSS

$custom: #3791ab;
$custom-light: #7cb1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3791ab",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 171
  },
  "hsl": {
    "h": 193.448,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.61414,
    "c": 0.09219,
    "h": 220.5
  },
  "luminance": 0.24003
}

Semantic roles & 50–950 ramp

primary

#3791AB

secondary

#C18C7C

accent

#6D4DDB

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3791AB

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

Preview Lab → · Contrast checker → · Palette generator →