#3670BB#3670BB

#3670BB is a mid, vivid cyan. Relative luminance 0.160; OKLCH L 54.4% C 0.132 H 256.0°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3670BB
RGB	rgb(54, 112, 187)
HSL	hsl(214, 55%, 47%)
HSV	hsv(214, 71%, 73%)
CMYK	cmyk(71.1%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(46.92, 6.48, -45.02)
CIE-LCH	lch(46.92, 45.48, 278.19°)
OKLab	oklab(54.4% -0.0321 -0.1284)
OKLCH	oklch(54.4% 0.132 256)
XYZ	xyz(16.2818, 15.9587, 49.2263)
Luminance	0.1596 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670BB #BB8136

analogous

#36B2BB #3670BB #3F36BB

triadic

#3670BB #BB3670 #70BB36

tetradic

#3670BB #BB36B2 #BB8136 #36BB3F

square

#3670BB #BB36B2 #BB8136 #36BB3F

split-complementary

#3670BB #BB3F36 #B2BB36

monochromatic

#1B375C #28548C #3670BB #5E90D0 #8DB1DE

Accessibility & contrast

On white

5.01

#3670BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3670BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670BB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670BB	#FFFFFF	#000000	##FFFFFF
##3670BB	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D76BE

Deuteranopia (green-blind)

#386AB9

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3670bb;
/* rgb */ color: rgb(54, 112, 187);
/* oklch */ color: oklch(54.4% 0.132 256.0);

Tailwind

colors: {
  custom: {
    50: '#7d98d0',
    500: '#3670bb',
    950: '#000000',
  },
}

SCSS

$custom: #3670bb;
$custom-light: #7d98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3670bb",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 213.835,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.54398,
    "c": 0.13235,
    "h": 256
  },
  "luminance": 0.1596
}

Semantic roles & 50–950 ramp

primary

#3670BB

secondary

#C9AB84

accent

#9D49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3670BB

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

Preview Lab → · Contrast checker → · Palette generator →