#3675DD#3675DD

#3675DD is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.7% C 0.172 H 259.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3675DD
RGB	rgb(54, 117, 221)
HSL	hsl(217, 71%, 54%)
HSV	hsv(217, 76%, 87%)
CMYK	cmyk(75.6%, 47.1%, 0%, 13.3%)
CIE-LAB	lab(50.36, 15.88, -58.93)
CIE-LCH	lch(50.36, 61.04, 285.08°)
OKLab	oklab(57.72% -0.03 -0.1692)
OKLCH	oklch(57.72% 0.172 259.9)
XYZ	xyz(20.9290, 18.7249, 70.9038)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3675DD #DD9E36

analogous

#36C9DD #3675DD #4B36DD

triadic

#3675DD #DD3675 #75DD36

tetradic

#3675DD #DD36C9 #DD9E36 #36DD4B

square

#3675DD #DD36C9 #DD9E36 #36DD4B

split-complementary

#3675DD #DD4B36 #C9DD36

monochromatic

#163F83 #1F58B7 #3675DD #6A99E6 #9FBDEF

Accessibility & contrast

On white

4.43

#3675DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3675DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3675DD

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3675DD	#FFFFFF	#000000	##000000
##3675DD	1.00	4.43	4.75	4.75
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C80E1

Deuteranopia (green-blind)

#0671DB

Tritanopia (blue-blind)

#008E9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3675dd;
/* rgb */ color: rgb(54, 117, 221);
/* oklch */ color: oklch(57.7% 0.172 259.9);

Tailwind

colors: {
  custom: {
    50: '#849ce8',
    500: '#3675dd',
    950: '#000000',
  },
}

SCSS

$custom: #3675dd;
$custom-light: #849ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#3675dd",
  "rgb": {
    "r": 54,
    "g": 117,
    "b": 221
  },
  "hsl": {
    "h": 217.365,
    "s": 71.064,
    "l": 53.922
  },
  "oklch": {
    "l": 0.57715,
    "c": 0.17185,
    "h": 259.9
  },
  "luminance": 0.18727
}

Semantic roles & 50–950 ramp

primary

#3675DD

secondary

#DBC094

accent

#AA3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3675DD

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

Preview Lab → · Contrast checker → · Palette generator →