#3775BF#3775BF

#3775BF is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.8% C 0.132 H 254.5°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3775BF
RGB	rgb(55, 117, 191)
HSL	hsl(213, 55%, 48%)
HSV	hsv(213, 71%, 75%)
CMYK	cmyk(71.2%, 38.7%, 0%, 25.1%)
CIE-LAB	lab(48.63, 4.99, -44.60)
CIE-LCH	lch(48.63, 44.88, 276.38°)
OKLab	oklab(55.81% -0.0352 -0.1271)
OKLCH	oklch(55.81% 0.132 254.5)
XYZ	xyz(17.3373, 17.2945, 51.7046)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775BF #BF8137

analogous

#37B9BF #3775BF #3D37BF

triadic

#3775BF #BF3775 #75BF37

tetradic

#3775BF #BF37B9 #BF8137 #37BF3D

square

#3775BF #BF37B9 #BF8137 #37BF3D

split-complementary

#3775BF #BF3D37 #B9BF37

monochromatic

#1C3B60 #29588F #3775BF #6295D2 #91B5DF

Accessibility & contrast

On white

4.71

#3775BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3775BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3775BF

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775BF	#FFFFFF	#000000	##FFFFFF
##3775BF	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#537AC2

Deuteranopia (green-blind)

#3E6EBE

Tritanopia (blue-blind)

#008691

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3775bf;
/* rgb */ color: rgb(55, 117, 191);
/* oklch */ color: oklch(55.8% 0.132 254.5);

Tailwind

colors: {
  custom: {
    50: '#7e9cd3',
    500: '#3775bf',
    950: '#000000',
  },
}

SCSS

$custom: #3775bf;
$custom-light: #7e9cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3775bf",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 191
  },
  "hsl": {
    "h": 212.647,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55811,
    "c": 0.13189,
    "h": 254.5
  },
  "luminance": 0.17296
}

Semantic roles & 50–950 ramp

primary

#3775BF

secondary

#CAAC88

accent

#9A49DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3775BF

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

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