#3677D3#3677D3

#3677D3 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.5% C 0.156 H 257.7°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3677D3
RGB	rgb(54, 119, 211)
HSL	hsl(215, 64%, 52%)
HSV	hsv(215, 74%, 83%)
CMYK	cmyk(74.4%, 43.6%, 0%, 17.3%)
CIE-LAB	lab(50.31, 10.94, -53.36)
CIE-LCH	lch(50.31, 54.47, 281.59°)
OKLab	oklab(57.48% -0.0334 -0.1528)
OKLCH	oklch(57.48% 0.156 257.7)
XYZ	xyz(19.8717, 18.6788, 64.1735)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677D3 #D39236

analogous

#36C6D3 #3677D3 #4336D3

triadic

#3677D3 #D33677 #77D336

tetradic

#3677D3 #D336C6 #D39236 #36D343

square

#3677D3 #D336C6 #D39236 #36D343

split-complementary

#3677D3 #D34336 #C6D336

monochromatic

#1A3F75 #255BA7 #3677D3 #6899DE #9ABBE9

Accessibility & contrast

On white

4.43

#3677D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3677D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677D3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677D3	#FFFFFF	#000000	##000000
##3677D3	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497FD7

Deuteranopia (green-blind)

#2B71D1

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3677d3;
/* rgb */ color: rgb(54, 119, 211);
/* oklch */ color: oklch(57.5% 0.156 257.7);

Tailwind

colors: {
  custom: {
    50: '#829de1',
    500: '#3677d3',
    950: '#000000',
  },
}

SCSS

$custom: #3677d3;
$custom-light: #829de1;
$custom-dark: #000000;

JSON

{
  "hex": "#3677d3",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 211
  },
  "hsl": {
    "h": 215.159,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57477,
    "c": 0.15639,
    "h": 257.7
  },
  "luminance": 0.18681
}

Semantic roles & 50–950 ramp

primary

#3677D3

secondary

#D5B890

accent

#A241E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3677D3

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

Preview Lab → · Contrast checker → · Palette generator →