#3673D8#3673D8

#3673D8 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.9% C 0.168 H 260.0°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3673D8
RGB	rgb(54, 115, 216)
HSL	hsl(217, 68%, 53%)
HSV	hsv(217, 75%, 85%)
CMYK	cmyk(75%, 46.8%, 0%, 15.3%)
CIE-LAB	lab(49.50, 15.29, -57.50)
CIE-LCH	lch(49.50, 59.50, 284.89°)
OKLab	oklab(56.95% -0.0292 -0.165)
OKLCH	oklch(56.95% 0.168 260)
XYZ	xyz(20.0422, 18.0013, 67.3707)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3673D8 #D89B36

analogous

#36C4D8 #3673D8 #4A36D8

triadic

#3673D8 #D83673 #73D836

tetradic

#3673D8 #D836C4 #D89B36 #36D84A

square

#3673D8 #D836C4 #D89B36 #36D84A

split-complementary

#3673D8 #D84A36 #C4D836

monochromatic

#183E7C #2257AF #3673D8 #6997E2 #9DBAEC

Accessibility & contrast

On white

4.56

#3673D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3673D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3673D8

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3673D8	#FFFFFF	#000000	##000000
##3673D8	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7EDC

Deuteranopia (green-blind)

#0E6FD6

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3673d8;
/* rgb */ color: rgb(54, 115, 216);
/* oklch */ color: oklch(56.9% 0.168 260.0);

Tailwind

colors: {
  custom: {
    50: '#839ae5',
    500: '#3673d8',
    950: '#000000',
  },
}

SCSS

$custom: #3673d8;
$custom-light: #839ae5;
$custom-dark: #000000;

JSON

{
  "hex": "#3673d8",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 216
  },
  "hsl": {
    "h": 217.407,
    "s": 67.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.56949,
    "c": 0.16758,
    "h": 260
  },
  "luminance": 0.18004
}

Semantic roles & 50–950 ramp

primary

#3673D8

secondary

#D8BE92

accent

#A93DEA

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3673D8

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

Preview Lab → · Contrast checker → · Palette generator →