#3677DD#3677DD

#3677DD is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.1% C 0.170 H 259.2°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3677DD
RGB	rgb(54, 119, 221)
HSL	hsl(217, 71%, 54%)
HSV	hsv(217, 76%, 87%)
CMYK	cmyk(75.6%, 46.2%, 0%, 13.3%)
CIE-LAB	lab(50.92, 14.63, -58.05)
CIE-LCH	lch(50.92, 59.86, 284.15°)
OKLab	oklab(58.14% -0.0316 -0.1666)
OKLCH	oklch(58.14% 0.17 259.2)
XYZ	xyz(21.1645, 19.1960, 70.9823)
Luminance	0.1920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677DD #DD9C36

analogous

#36CADD #3677DD #4936DD

triadic

#3677DD #DD3677 #77DD36

tetradic

#3677DD #DD36CA #DD9C36 #36DD49

square

#3677DD #DD36CA #DD9C36 #36DD49

split-complementary

#3677DD #DD4936 #CADD36

monochromatic

#164083 #1F5AB7 #3677DD #6A9AE6 #9FBEEF

Accessibility & contrast

On white

4.34

#3677DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3677DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677DD

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677DD	#FFFFFF	#000000	##000000
##3677DD	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4081E1

Deuteranopia (green-blind)

#1572DB

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3677dd;
/* rgb */ color: rgb(54, 119, 221);
/* oklch */ color: oklch(58.1% 0.170 259.2);

Tailwind

colors: {
  custom: {
    50: '#849de8',
    500: '#3677dd',
    950: '#000000',
  },
}

SCSS

$custom: #3677dd;
$custom-light: #849de8;
$custom-dark: #000000;

JSON

{
  "hex": "#3677dd",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 221
  },
  "hsl": {
    "h": 216.647,
    "s": 71.064,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5814,
    "c": 0.16954,
    "h": 259.2
  },
  "luminance": 0.19198
}

Semantic roles & 50–950 ramp

primary

#3677DD

secondary

#DBBF94

accent

#A83AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3677DD

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

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