#3674DD#3674DD

#3674DD is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.5% C 0.173 H 260.3°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3674DD
RGB	rgb(54, 116, 221)
HSL	hsl(218, 71%, 54%)
HSV	hsv(218, 76%, 87%)
CMYK	cmyk(75.6%, 47.5%, 0%, 13.3%)
CIE-LAB	lab(50.09, 16.51, -59.38)
CIE-LCH	lch(50.09, 61.63, 285.54°)
OKLab	oklab(57.5% -0.0292 -0.1705)
OKLCH	oklch(57.5% 0.173 260.3)
XYZ	xyz(20.8131, 18.4931, 70.8652)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3674DD #DD9F36

analogous

#36C7DD #3674DD #4C36DD

triadic

#3674DD #DD3674 #74DD36

tetradic

#3674DD #DD36C7 #DD9F36 #36DD4C

square

#3674DD #DD36C7 #DD9F36 #36DD4C

split-complementary

#3674DD #DD4C36 #C7DD36

monochromatic

#163E83 #1F57B7 #3674DD #6A98E6 #9FBCEF

Accessibility & contrast

On white

4.47

#3674DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3674DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3674DD

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3674DD	#FFFFFF	#000000	##000000
##3674DD	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397FE1

Deuteranopia (green-blind)

#0070DB

Tritanopia (blue-blind)

#008D9E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3674dd;
/* rgb */ color: rgb(54, 116, 221);
/* oklch */ color: oklch(57.5% 0.173 260.3);

Tailwind

colors: {
  custom: {
    50: '#849be8',
    500: '#3674dd',
    950: '#000000',
  },
}

SCSS

$custom: #3674dd;
$custom-light: #849be8;
$custom-dark: #000000;

JSON

{
  "hex": "#3674dd",
  "rgb": {
    "r": 54,
    "g": 116,
    "b": 221
  },
  "hsl": {
    "h": 217.725,
    "s": 71.064,
    "l": 53.922
  },
  "oklch": {
    "l": 0.57504,
    "c": 0.17302,
    "h": 260.3
  },
  "luminance": 0.18496
}

Semantic roles & 50–950 ramp

primary

#3674DD

secondary

#DBC194

accent

#AB3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3674DD

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

Preview Lab → · Contrast checker → · Palette generator →