#3673B9#3673B9

#3673B9 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 55.0% C 0.126 H 253.7°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3673B9
RGB	rgb(54, 115, 185)
HSL	hsl(212, 55%, 47%)
HSV	hsv(212, 71%, 73%)
CMYK	cmyk(70.8%, 37.8%, 0%, 27.5%)
CIE-LAB	lab(47.68, 3.89, -42.65)
CIE-LCH	lch(47.68, 42.82, 275.22°)
OKLab	oklab(54.96% -0.0355 -0.1214)
OKLCH	oklch(54.96% 0.126 253.7)
XYZ	xyz(16.4058, 16.5468, 48.2188)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3673B9 #B97C36

analogous

#36B5B9 #3673B9 #3A36B9

triadic

#3673B9 #B93673 #73B936

tetradic

#3673B9 #B936B5 #B97C36 #36B93A

square

#3673B9 #B936B5 #B97C36 #36B93A

split-complementary

#3673B9 #B93A36 #B5B936

monochromatic

#1A385A #28568A #3673B9 #5D92D0 #8CB2DD

Accessibility & contrast

On white

4.87

#3673B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3673B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3673B9

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3673B9	#FFFFFF	#000000	##FFFFFF
##3673B9	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BC

Deuteranopia (green-blind)

#406CB8

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3673b9;
/* rgb */ color: rgb(54, 115, 185);
/* oklch */ color: oklch(55.0% 0.126 253.7);

Tailwind

colors: {
  custom: {
    50: '#7d9ace',
    500: '#3673b9',
    950: '#000000',
  },
}

SCSS

$custom: #3673b9;
$custom-light: #7d9ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3673b9",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 185
  },
  "hsl": {
    "h": 212.061,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54957,
    "c": 0.12647,
    "h": 253.7
  },
  "luminance": 0.16549
}

Semantic roles & 50–950 ramp

primary

#3673B9

secondary

#C8A883

accent

#994ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3673B9

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

Preview Lab → · Contrast checker → · Palette generator →