#3677BD#3677BD

#3677BD is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 56.1% C 0.128 H 252.5°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3677BD
RGB	rgb(54, 119, 189)
HSL	hsl(211, 56%, 48%)
HSV	hsv(211, 71%, 74%)
CMYK	cmyk(71.4%, 37%, 0%, 25.9%)
CIE-LAB	lab(49.07, 2.89, -42.76)
CIE-LCH	lch(49.07, 42.85, 273.87°)
OKLab	oklab(56.11% -0.0383 -0.1217)
OKLCH	oklch(56.11% 0.128 252.5)
XYZ	xyz(17.3000, 17.6502, 50.6293)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677BD #BD7C36

analogous

#36BBBD #3677BD #3836BD

triadic

#3677BD #BD3677 #77BD36

tetradic

#3677BD #BD36BB #BD7C36 #36BD38

square

#3677BD #BD36BB #BD7C36 #36BD38

split-complementary

#3677BD #BD3836 #BBBD36

monochromatic

#1B3B5E #28598D #3677BD #5F96D1 #8FB5DF

Accessibility & contrast

On white

4.64

#3677BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3677BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3677BD

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677BD	#FFFFFF	#000000	##FFFFFF
##3677BD	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577BC0

Deuteranopia (green-blind)

#436FBC

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3677bd;
/* rgb */ color: rgb(54, 119, 189);
/* oklch */ color: oklch(56.1% 0.128 252.5);

Tailwind

colors: {
  custom: {
    50: '#7d9dd1',
    500: '#3677bd',
    950: '#000000',
  },
}

SCSS

$custom: #3677bd;
$custom-light: #7d9dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3677bd",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 189
  },
  "hsl": {
    "h": 211.111,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56109,
    "c": 0.12755,
    "h": 252.5
  },
  "luminance": 0.17652
}

Semantic roles & 50–950 ramp

primary

#3677BD

secondary

#C9A985

accent

#9749DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3677BD

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

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