#3671BC#3671BC

#3671BC is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.7% C 0.133 H 255.7°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3671BC
RGB	rgb(54, 113, 188)
HSL	hsl(214, 55%, 47%)
HSV	hsv(214, 71%, 74%)
CMYK	cmyk(71.3%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(47.27, 6.22, -45.04)
CIE-LCH	lch(47.27, 45.47, 277.87°)
OKLab	oklab(54.68% -0.0328 -0.1284)
OKLCH	oklch(54.68% 0.133 255.7)
XYZ	xyz(16.5002, 16.2236, 49.8291)
Luminance	0.1623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671BC #BC8136

analogous

#36B4BC #3671BC #3E36BC

triadic

#3671BC #BC3671 #71BC36

tetradic

#3671BC #BC36B4 #BC8136 #36BC3E

square

#3671BC #BC36B4 #BC8136 #36BC3E

split-complementary

#3671BC #BC3E36 #B4BC36

monochromatic

#1B385D #28548C #3671BC #5E91D1 #8EB1DF

Accessibility & contrast

On white

4.95

#3671BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3671BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3671BC

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671BC	#FFFFFF	#000000	##FFFFFF
##3671BC	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77BF

Deuteranopia (green-blind)

#396ABA

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3671bc;
/* rgb */ color: rgb(54, 113, 188);
/* oklch */ color: oklch(54.7% 0.133 255.7);

Tailwind

colors: {
  custom: {
    50: '#7d99d0',
    500: '#3671bc',
    950: '#000000',
  },
}

SCSS

$custom: #3671bc;
$custom-light: #7d99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3671bc",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 213.582,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54685,
    "c": 0.13258,
    "h": 255.7
  },
  "luminance": 0.16225
}

Semantic roles & 50–950 ramp

primary

#3671BC

secondary

#C9AB85

accent

#9D49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3671BC

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

Preview Lab → · Contrast checker → · Palette generator →