#3675BB#3675BB

#3675BB is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.5% C 0.127 H 253.1°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3675BB
RGB	rgb(54, 117, 187)
HSL	hsl(212, 55%, 47%)
HSV	hsv(212, 71%, 73%)
CMYK	cmyk(71.1%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.38, 3.39, -42.70)
CIE-LCH	lch(48.38, 42.84, 274.54°)
OKLab	oklab(55.53% -0.0369 -0.1215)
OKLCH	oklch(55.53% 0.127 253.1)
XYZ	xyz(16.8489, 17.0929, 49.4154)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3675BB #BB7C36

analogous

#36B8BB #3675BB #3936BB

triadic

#3675BB #BB3675 #75BB36

tetradic

#3675BB #BB36B8 #BB7C36 #36BB39

square

#3675BB #BB36B8 #BB7C36 #36BB39

split-complementary

#3675BB #BB3936 #B8BB36

monochromatic

#1B3A5C #28578C #3675BB #5E94D0 #8DB4DE

Accessibility & contrast

On white

4.75

#3675BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3675BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3675BB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3675BB	#FFFFFF	#000000	##FFFFFF
##3675BB	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557ABE

Deuteranopia (green-blind)

#416DBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3675bb;
/* rgb */ color: rgb(54, 117, 187);
/* oklch */ color: oklch(55.5% 0.127 253.1);

Tailwind

colors: {
  custom: {
    50: '#7d9cd0',
    500: '#3675bb',
    950: '#000000',
  },
}

SCSS

$custom: #3675bb;
$custom-light: #7d9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3675bb",
  "rgb": {
    "r": 54,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 211.579,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.55533,
    "c": 0.12701,
    "h": 253.1
  },
  "luminance": 0.17095
}

Semantic roles & 50–950 ramp

primary

#3675BB

secondary

#C9A884

accent

#9849DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3675BB

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

Preview Lab → · Contrast checker → · Palette generator →