#3677D0#3677D0

#3677D0 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.3% C 0.152 H 257.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3677D0
RGB	rgb(54, 119, 208)
HSL	hsl(215, 62%, 51%)
HSV	hsv(215, 74%, 82%)
CMYK	cmyk(74%, 42.8%, 0%, 18.4%)
CIE-LAB	lab(50.13, 9.84, -51.94)
CIE-LCH	lch(50.13, 52.86, 280.73°)
OKLab	oklab(57.28% -0.034 -0.1486)
OKLCH	oklch(57.28% 0.152 257.1)
XYZ	xyz(19.4991, 18.5298, 62.2112)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677D0 #D08F36

analogous

#36C4D0 #3677D0 #4236D0

triadic

#3677D0 #D03677 #77D036

tetradic

#3677D0 #D036C4 #D08F36 #36D042

square

#3677D0 #D036C4 #D08F36 #36D042

split-complementary

#3677D0 #D04236 #C4D036

monochromatic

#1A3F71 #265BA3 #3677D0 #6899DC #99BAE7

Accessibility & contrast

On white

4.46

#3677D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#3677D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677D0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677D0	#FFFFFF	#000000	##000000
##3677D0	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7FD3

Deuteranopia (green-blind)

#2F71CE

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3677d0;
/* rgb */ color: rgb(54, 119, 208);
/* oklch */ color: oklch(57.3% 0.152 257.1);

Tailwind

colors: {
  custom: {
    50: '#819ddf',
    500: '#3677d0',
    950: '#000000',
  },
}

SCSS

$custom: #3677d0;
$custom-light: #819ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#3677d0",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 208
  },
  "hsl": {
    "h": 214.675,
    "s": 62.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57283,
    "c": 0.15244,
    "h": 257.1
  },
  "luminance": 0.18532
}

Semantic roles & 50–950 ramp

primary

#3677D0

secondary

#D3B68F

accent

#A143E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3677D0

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

Preview Lab → · Contrast checker → · Palette generator →