#3791BF#3791BF

#3791BF is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.109 H 234.8°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#3791BF
RGB	rgb(55, 145, 191)
HSL	hsl(200, 55%, 48%)
HSV	hsv(200, 71%, 75%)
CMYK	cmyk(71.2%, 24.1%, 0%, 25.1%)
CIE-LAB	lab(56.90, -11.48, -31.59)
CIE-LCH	lch(56.90, 33.61, 250.04°)
OKLab	oklab(62.33% -0.0627 -0.0889)
OKLCH	oklch(62.33% 0.109 234.8)
XYZ	xyz(21.1012, 24.8222, 52.9592)
Luminance	0.2482 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3791BF #BF6537

analogous

#37BFA9 #3791BF #374DBF

triadic

#3791BF #BF3791 #91BF37

tetradic

#3791BF #A937BF #BF6537 #4DBF37

square

#3791BF #A937BF #BF6537 #4DBF37

split-complementary

#3791BF #BF374D #BFA937

monochromatic

#1C4960 #296D8F #3791BF #62ACD2 #91C5DF

Accessibility & contrast

On white

3.52

#3791BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#3791BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3791BF

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3791BF	#FFFFFF	#000000	##000000
##3791BF	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C1

Deuteranopia (green-blind)

#6883BE

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3791bf;
/* rgb */ color: rgb(55, 145, 191);
/* oklch */ color: oklch(62.3% 0.109 234.8);

Tailwind

colors: {
  custom: {
    50: '#7fb1d2',
    500: '#3791bf',
    950: '#000000',
  },
}

SCSS

$custom: #3791bf;
$custom-light: #7fb1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3791bf",
  "rgb": {
    "r": 55,
    "g": 145,
    "b": 191
  },
  "hsl": {
    "h": 200.294,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.62332,
    "c": 0.10875,
    "h": 234.8
  },
  "luminance": 0.24825
}

Semantic roles & 50–950 ramp

primary

#3791BF

secondary

#CA9E88

accent

#7C49DF

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3791BF

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

Preview Lab → · Contrast checker → · Palette generator →