#3791B9#3791B9

#3791B9 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.0% C 0.103 H 231.1°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3791B9
RGB	rgb(55, 145, 185)
HSL	hsl(198, 54%, 47%)
HSV	hsv(198, 70%, 73%)
CMYK	cmyk(70.3%, 21.6%, 0%, 27.5%)
CIE-LAB	lab(56.65, -13.51, -28.58)
CIE-LCH	lch(56.65, 31.61, 244.71°)
OKLab	oklab(62.05% -0.0648 -0.0802)
OKLCH	oklch(62.05% 0.103 231.1)
XYZ	xyz(20.4544, 24.5635, 49.5528)
Luminance	0.2457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791B9 #B95F37

analogous

#37B9A0 #3791B9 #3750B9

triadic

#3791B9 #B93791 #91B937

tetradic

#3791B9 #A037B9 #B95F37 #50B937

square

#3791B9 #A037B9 #B95F37 #50B937

split-complementary

#3791B9 #B93750 #B9A037

monochromatic

#1B475B #296C8A #3791B9 #5EACCF #8DC5DD

Accessibility & contrast

On white

3.55

#3791B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#3791B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791B9

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791B9	#FFFFFF	#000000	##000000
##3791B9	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8FBB

Deuteranopia (green-blind)

#6B82B8

Tritanopia (blue-blind)

#009C9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3791b9;
/* rgb */ color: rgb(55, 145, 185);
/* oklch */ color: oklch(62.0% 0.103 231.1);

Tailwind

colors: {
  custom: {
    50: '#7eb1ce',
    500: '#3791b9',
    950: '#000000',
  },
}

SCSS

$custom: #3791b9;
$custom-light: #7eb1ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3791b9",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 185
  },
  "hsl": {
    "h": 198.462,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.62046,
    "c": 0.10311,
    "h": 231.1
  },
  "luminance": 0.24566
}

Semantic roles & 50–950 ramp

primary

#3791B9

secondary

#C89984

accent

#784ADE

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3791B9

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

Preview Lab → · Contrast checker → · Palette generator →