#3775BC#3775BC

#3775BC is a mid, vivid cyan. Relative luminance 0.172; OKLCH L 55.6% C 0.128 H 253.7°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3775BC
RGB	rgb(55, 117, 188)
HSL	hsl(212, 55%, 48%)
HSV	hsv(212, 71%, 74%)
CMYK	cmyk(70.7%, 37.8%, 0%, 26.3%)
CIE-LAB	lab(48.47, 3.90, -43.14)
CIE-LCH	lch(48.47, 43.31, 275.17°)
OKLab	oklab(55.63% -0.036 -0.1228)
OKLCH	oklch(55.63% 0.128 253.7)
XYZ	xyz(17.0106, 17.1638, 49.9837)
Luminance	0.1717 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775BC #BC7E37

analogous

#37B8BC #3775BC #3B37BC

triadic

#3775BC #BC3775 #75BC37

tetradic

#3775BC #BC37B8 #BC7E37 #37BC3B

square

#3775BC #BC37B8 #BC7E37 #37BC3B

split-complementary

#3775BC #BC3B37 #B8BC37

monochromatic

#1B3A5D #29588D #3775BC #6094D0 #8FB4DE

Accessibility & contrast

On white

4.74

#3775BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3775BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3775BC

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775BC	#FFFFFF	#000000	##FFFFFF
##3775BC	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557ABF

Deuteranopia (green-blind)

#416DBB

Tritanopia (blue-blind)

#00868F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3775bc;
/* rgb */ color: rgb(55, 117, 188);
/* oklch */ color: oklch(55.6% 0.128 253.7);

Tailwind

colors: {
  custom: {
    50: '#7e9cd0',
    500: '#3775bc',
    950: '#000000',
  },
}

SCSS

$custom: #3775bc;
$custom-light: #7e9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3775bc",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 188
  },
  "hsl": {
    "h": 212.03,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5563,
    "c": 0.12794,
    "h": 253.7
  },
  "luminance": 0.17166
}

Semantic roles & 50–950 ramp

primary

#3775BC

secondary

#C9AA86

accent

#994ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3775BC

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

Preview Lab → · Contrast checker → · Palette generator →