#3677D1#3677D1

#3677D1 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.3% C 0.154 H 257.3°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3677D1
RGB	rgb(54, 119, 209)
HSL	hsl(215, 63%, 52%)
HSV	hsv(215, 74%, 82%)
CMYK	cmyk(74.2%, 43.1%, 0%, 18%)
CIE-LAB	lab(50.19, 10.21, -52.41)
CIE-LCH	lch(50.19, 53.40, 281.02°)
OKLab	oklab(57.35% -0.0338 -0.15)
OKLCH	oklch(57.35% 0.154 257.3)
XYZ	xyz(19.6226, 18.5792, 62.8612)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677D1 #D19036

analogous

#36C4D1 #3677D1 #4336D1

triadic

#3677D1 #D13677 #77D136

tetradic

#3677D1 #D136C4 #D19036 #36D143

square

#3677D1 #D136C4 #D19036 #36D143

split-complementary

#3677D1 #D14336 #C4D136

monochromatic

#1A3F72 #265BA4 #3677D1 #6899DC #9ABAE8

Accessibility & contrast

On white

4.45

#3677D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#3677D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677D1

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677D1	#FFFFFF	#000000	##000000
##3677D1	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7FD4

Deuteranopia (green-blind)

#2E71CF

Tritanopia (blue-blind)

#008C9A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3677d1;
/* rgb */ color: rgb(54, 119, 209);
/* oklch */ color: oklch(57.3% 0.154 257.3);

Tailwind

colors: {
  custom: {
    50: '#819ddf',
    500: '#3677d1',
    950: '#000000',
  },
}

SCSS

$custom: #3677d1;
$custom-light: #819ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#3677d1",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 209
  },
  "hsl": {
    "h": 214.839,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57347,
    "c": 0.15375,
    "h": 257.3
  },
  "luminance": 0.18581
}

Semantic roles & 50–950 ramp

primary

#3677D1

secondary

#D3B78F

accent

#A142E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3677D1

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

Preview Lab → · Contrast checker → · Palette generator →