#3673CB#3673CB

#3673CB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.150 H 257.9°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3673CB
RGB	rgb(54, 115, 203)
HSL	hsl(215, 59%, 50%)
HSV	hsv(215, 73%, 80%)
CMYK	cmyk(73.4%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(48.70, 10.49, -51.37)
CIE-LCH	lch(48.70, 52.43, 281.54°)
OKLab	oklab(56.08% -0.0315 -0.147)
OKLCH	oklch(56.08% 0.15 257.9)
XYZ	xyz(18.4276, 17.3555, 58.8671)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3673CB #CB8E36

analogous

#36BECB #3673CB #4336CB

triadic

#3673CB #CB3673 #73CB36

tetradic

#3673CB #CB36BE #CB8E36 #36CB43

square

#3673CB #CB36BE #CB8E36 #36CB43

split-complementary

#3673CB #CB4336 #BECB36

monochromatic

#1C3C6B #28579C #3673CB #6795D8 #97B7E4

Accessibility & contrast

On white

4.70

#3673CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3673CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3673CB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3673CB	#FFFFFF	#000000	##FFFFFF
##3673CB	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCE

Deuteranopia (green-blind)

#2C6DC9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3673cb;
/* rgb */ color: rgb(54, 115, 203);
/* oklch */ color: oklch(56.1% 0.150 257.9);

Tailwind

colors: {
  custom: {
    50: '#809adb',
    500: '#3673cb',
    950: '#000000',
  },
}

SCSS

$custom: #3673cb;
$custom-light: #809adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3673cb",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 215.436,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56082,
    "c": 0.15034,
    "h": 257.9
  },
  "luminance": 0.17358
}

Semantic roles & 50–950 ramp

primary

#3673CB

secondary

#D0B48D

accent

#A246E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3673CB

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

Preview Lab → · Contrast checker → · Palette generator →