#3670BD#3670BD

#3670BD is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.5% C 0.135 H 256.4°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#3670BD
RGB	rgb(54, 112, 189)
HSL	hsl(214, 56%, 48%)
HSV	hsv(214, 71%, 74%)
CMYK	cmyk(71.4%, 40.7%, 0%, 25.9%)
CIE-LAB	lab(47.03, 7.21, -45.99)
CIE-LCH	lch(47.03, 46.56, 278.91°)
OKLab	oklab(54.52% -0.0317 -0.1313)
OKLCH	oklch(54.52% 0.135 256.4)
XYZ	xyz(16.4974, 16.0450, 50.3618)
Luminance	0.1605 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670BD #BD8336

analogous

#36B4BD #3670BD #3F36BD

triadic

#3670BD #BD3670 #70BD36

tetradic

#3670BD #BD36B4 #BD8336 #36BD3F

square

#3670BD #BD36B4 #BD8336 #36BD3F

split-complementary

#3670BD #BD3F36 #B4BD36

monochromatic

#1B385E #28548D #3670BD #5F90D1 #8FB1DF

Accessibility & contrast

On white

4.99

#3670BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#3670BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670BD

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670BD	#FFFFFF	#000000	##FFFFFF
##3670BD	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C76C0

Deuteranopia (green-blind)

#366ABB

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3670bd;
/* rgb */ color: rgb(54, 112, 189);
/* oklch */ color: oklch(54.5% 0.135 256.4);

Tailwind

colors: {
  custom: {
    50: '#7d98d1',
    500: '#3670bd',
    950: '#000000',
  },
}

SCSS

$custom: #3670bd;
$custom-light: #7d98d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3670bd",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 189
  },
  "hsl": {
    "h": 214.222,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.54523,
    "c": 0.13503,
    "h": 256.4
  },
  "luminance": 0.16047
}

Semantic roles & 50–950 ramp

primary

#3670BD

secondary

#C9AC85

accent

#9E49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3670BD

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

Preview Lab → · Contrast checker → · Palette generator →