#3673BF#3673BF

#3673BF is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.3% C 0.134 H 255.3°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3673BF
RGB	rgb(54, 115, 191)
HSL	hsl(213, 56%, 48%)
HSV	hsv(213, 72%, 75%)
CMYK	cmyk(71.7%, 39.8%, 0%, 25.1%)
CIE-LAB	lab(48.01, 6.08, -45.59)
CIE-LCH	lch(48.01, 45.99, 277.60°)
OKLab	oklab(55.32% -0.034 -0.13)
OKLCH	oklch(55.32% 0.134 255.3)
XYZ	xyz(17.0526, 16.8055, 51.6252)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3673BF #BF8236

analogous

#36B7BF #3673BF #3E36BF

triadic

#3673BF #BF3673 #73BF36

tetradic

#3673BF #BF36B7 #BF8236 #36BF3E

square

#3673BF #BF36B7 #BF8236 #36BF3E

split-complementary

#3673BF #BF3E36 #B7BF36

monochromatic

#1B3A60 #29568F #3673BF #6093D2 #90B3E0

Accessibility & contrast

On white

4.81

#3673BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3673BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3673BF

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3673BF	#FFFFFF	#000000	##FFFFFF
##3673BF	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C2

Deuteranopia (green-blind)

#3A6CBD

Tritanopia (blue-blind)

#008590

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3673bf;
/* rgb */ color: rgb(54, 115, 191);
/* oklch */ color: oklch(55.3% 0.134 255.3);

Tailwind

colors: {
  custom: {
    50: '#7e9ad3',
    500: '#3673bf',
    950: '#000000',
  },
}

SCSS

$custom: #3673bf;
$custom-light: #7e9ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#3673bf",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 191
  },
  "hsl": {
    "h": 213.285,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55322,
    "c": 0.13439,
    "h": 255.3
  },
  "luminance": 0.16807
}

Semantic roles & 50–950 ramp

primary

#3673BF

secondary

#CAAC87

accent

#9C49DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3673BF

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

Preview Lab → · Contrast checker → · Palette generator →