#3775B8#3775B8

#3775B8 is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.4% C 0.123 H 252.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3775B8
RGB	rgb(55, 117, 184)
HSL	hsl(211, 54%, 47%)
HSV	hsv(211, 70%, 72%)
CMYK	cmyk(70.1%, 36.4%, 0%, 27.8%)
CIE-LAB	lab(48.25, 2.46, -41.16)
CIE-LCH	lch(48.25, 41.24, 273.41°)
OKLab	oklab(55.39% -0.037 -0.117)
OKLCH	oklch(55.39% 0.123 252.5)
XYZ	xyz(16.5854, 16.9937, 47.7441)
Luminance	0.1699 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775B8 #B87A37

analogous

#37B6B8 #3775B8 #3A37B8

triadic

#3775B8 #B83775 #75B837

tetradic

#3775B8 #B837B6 #B87A37 #37B83A

square

#3775B8 #B837B6 #B87A37 #37B83A

split-complementary

#3775B8 #B83A37 #B6B837

monochromatic

#1B395A #295789 #3775B8 #5D94CF #8DB3DD

Accessibility & contrast

On white

4.77

#3775B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3775B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3775B8

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775B8	#FFFFFF	#000000	##FFFFFF
##3775B8	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5779BB

Deuteranopia (green-blind)

#446DB7

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3775b8;
/* rgb */ color: rgb(55, 117, 184);
/* oklch */ color: oklch(55.4% 0.123 252.5);

Tailwind

colors: {
  custom: {
    50: '#7d9ccd',
    500: '#3775b8',
    950: '#000000',
  },
}

SCSS

$custom: #3775b8;
$custom-light: #7d9ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#3775b8",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 184
  },
  "hsl": {
    "h": 211.163,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.55394,
    "c": 0.12272,
    "h": 252.5
  },
  "luminance": 0.16995
}

Semantic roles & 50–950 ramp

primary

#3775B8

secondary

#C7A784

accent

#974ADD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3775B8

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

Preview Lab → · Contrast checker → · Palette generator →