#3673DB#3673DB

#3673DB is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.2% C 0.172 H 260.4°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3673DB
RGB	rgb(54, 115, 219)
HSL	hsl(218, 70%, 54%)
HSV	hsv(218, 75%, 86%)
CMYK	cmyk(75.3%, 47.5%, 0%, 14.1%)
CIE-LAB	lab(49.69, 16.40, -58.89)
CIE-LCH	lch(49.69, 61.13, 285.56°)
OKLab	oklab(57.16% -0.0287 -0.1691)
OKLCH	oklch(57.16% 0.172 260.4)
XYZ	xyz(20.4336, 18.1579, 69.4320)
Luminance	0.1816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3673DB #DB9E36

analogous

#36C5DB #3673DB #4B36DB

triadic

#3673DB #DB3673 #73DB36

tetradic

#3673DB #DB36C5 #DB9E36 #36DB4B

square

#3673DB #DB36C5 #DB9E36 #36DB4B

split-complementary

#3673DB #DB4B36 #C5DB36

monochromatic

#173E80 #2057B4 #3673DB #6A97E4 #9EBBEE

Accessibility & contrast

On white

4.53

#3673DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3673DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3673DB

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3673DB	#FFFFFF	#000000	##000000
##3673DB	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397EDF

Deuteranopia (green-blind)

#006FD9

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3673db;
/* rgb */ color: rgb(54, 115, 219);
/* oklch */ color: oklch(57.2% 0.172 260.4);

Tailwind

colors: {
  custom: {
    50: '#839ae7',
    500: '#3673db',
    950: '#000000',
  },
}

SCSS

$custom: #3673db;
$custom-light: #839ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#3673db",
  "rgb": {
    "r": 54,
    "g": 115,
    "b": 219
  },
  "hsl": {
    "h": 217.818,
    "s": 69.62,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57155,
    "c": 0.17155,
    "h": 260.4
  },
  "luminance": 0.1816
}

Semantic roles & 50–950 ramp

primary

#3673DB

secondary

#DAC093

accent

#AB3BEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3673DB

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

Preview Lab → · Contrast checker → · Palette generator →