#3671DB#3671DB

#3671DB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.174 H 261.0°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3671DB
RGB	rgb(54, 113, 219)
HSL	hsl(219, 70%, 54%)
HSV	hsv(219, 75%, 86%)
CMYK	cmyk(75.3%, 48.4%, 0%, 14.1%)
CIE-LAB	lab(49.14, 17.65, -59.78)
CIE-LCH	lch(49.14, 62.33, 286.45°)
OKLab	oklab(56.73% -0.0271 -0.1718)
OKLCH	oklch(56.73% 0.174 261)
XYZ	xyz(20.2080, 17.7067, 69.3568)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671DB #DBA036

analogous

#36C4DB #3671DB #4D36DB

triadic

#3671DB #DB3671 #71DB36

tetradic

#3671DB #DB36C4 #DBA036 #36DB4D

square

#3671DB #DB36C4 #DBA036 #36DB4D

split-complementary

#3671DB #DB4D36 #C4DB36

monochromatic

#173C80 #2055B4 #3671DB #6A96E4 #9EBAEE

Accessibility & contrast

On white

4.62

#3671DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3671DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3671DB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671DB	#FFFFFF	#000000	##FFFFFF
##3671DB	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#347DDF

Deuteranopia (green-blind)

#006ED9

Tritanopia (blue-blind)

#008A9B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3671db;
/* rgb */ color: rgb(54, 113, 219);
/* oklch */ color: oklch(56.7% 0.174 261.0);

Tailwind

colors: {
  custom: {
    50: '#8399e7',
    500: '#3671db',
    950: '#000000',
  },
}

SCSS

$custom: #3671db;
$custom-light: #8399e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3671db",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 219
  },
  "hsl": {
    "h": 218.545,
    "s": 69.62,
    "l": 53.529
  },
  "oklch": {
    "l": 0.56734,
    "c": 0.17389,
    "h": 261
  },
  "luminance": 0.17709
}

Semantic roles & 50–950 ramp

primary

#3671DB

secondary

#DAC093

accent

#AD3BEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3671DB

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

Preview Lab → · Contrast checker → · Palette generator →