#3791BD#3791BD

#3791BD is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.107 H 233.6°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3791BD
RGB	rgb(55, 145, 189)
HSL	hsl(200, 55%, 48%)
HSV	hsv(200, 71%, 74%)
CMYK	cmyk(70.9%, 23.3%, 0%, 25.9%)
CIE-LAB	lab(56.82, -12.16, -30.59)
CIE-LCH	lch(56.82, 32.92, 248.33°)
OKLab	oklab(62.24% -0.0634 -0.086)
OKLCH	oklch(62.24% 0.107 233.6)
XYZ	xyz(20.8826, 24.7348, 51.8080)
Luminance	0.2474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791BD #BD6337

analogous

#37BDA6 #3791BD #374EBD

triadic

#3791BD #BD3791 #91BD37

tetradic

#3791BD #A637BD #BD6337 #4EBD37

square

#3791BD #A637BD #BD6337 #4EBD37

split-complementary

#3791BD #BD374E #BDA637

monochromatic

#1B485E #296D8E #3791BD #60ACD1 #90C5DF

Accessibility & contrast

On white

3.53

#3791BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#3791BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791BD

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791BD	#FFFFFF	#000000	##000000
##3791BD	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90BF

Deuteranopia (green-blind)

#6983BC

Tritanopia (blue-blind)

#009DA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3791bd;
/* rgb */ color: rgb(55, 145, 189);
/* oklch */ color: oklch(62.2% 0.107 233.6);

Tailwind

colors: {
  custom: {
    50: '#7fb1d1',
    500: '#3791bd',
    950: '#000000',
  },
}

SCSS

$custom: #3791bd;
$custom-light: #7fb1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3791bd",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 189
  },
  "hsl": {
    "h": 199.701,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.62236,
    "c": 0.10681,
    "h": 233.6
  },
  "luminance": 0.24737
}

Semantic roles & 50–950 ramp

primary

#3791BD

secondary

#C99C86

accent

#7A4ADE

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3791BD

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

Preview Lab → · Contrast checker → · Palette generator →