#3678BD#3678BD

#3678BD is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.127 H 251.9°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3678BD
RGB	rgb(54, 120, 189)
HSL	hsl(211, 56%, 48%)
HSV	hsv(211, 71%, 74%)
CMYK	cmyk(71.4%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(49.36, 2.28, -42.29)
CIE-LCH	lch(49.36, 42.35, 273.09°)
OKLab	oklab(56.34% -0.0393 -0.1203)
OKLCH	oklch(56.34% 0.127 251.9)
XYZ	xyz(17.4197, 17.8894, 50.6692)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3678BD #BD7B36

analogous

#36BBBD #3678BD #3836BD

triadic

#3678BD #BD3678 #78BD36

tetradic

#3678BD #BD36BB #BD7B36 #36BD38

square

#3678BD #BD36BB #BD7B36 #36BD38

split-complementary

#3678BD #BD3836 #BBBD36

monochromatic

#1B3C5E #285A8D #3678BD #5F97D1 #8FB6DF

Accessibility & contrast

On white

4.59

#3678BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3678BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3678BD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3678BD	#FFFFFF	#000000	##FFFFFF
##3678BD	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CC0

Deuteranopia (green-blind)

#4570BC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3678bd;
/* rgb */ color: rgb(54, 120, 189);
/* oklch */ color: oklch(56.3% 0.127 251.9);

Tailwind

colors: {
  custom: {
    50: '#7d9ed1',
    500: '#3678bd',
    950: '#000000',
  },
}

SCSS

$custom: #3678bd;
$custom-light: #7d9ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3678bd",
  "rgb": {
    "r": 54,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 210.667,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56338,
    "c": 0.12654,
    "h": 251.9
  },
  "luminance": 0.17891
}

Semantic roles & 50–950 ramp

primary

#3678BD

secondary

#C9A885

accent

#9649DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3678BD

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

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