#3677C8#3677C8

#3677C8 is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.8% C 0.142 H 255.4°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3677C8
RGB	rgb(54, 119, 200)
HSL	hsl(213, 57%, 50%)
HSV	hsv(213, 73%, 78%)
CMYK	cmyk(73%, 40.5%, 0%, 21.6%)
CIE-LAB	lab(49.67, 6.90, -48.11)
CIE-LCH	lch(49.67, 48.60, 278.16°)
OKLab	oklab(56.78% -0.0357 -0.1373)
OKLCH	oklch(56.78% 0.142 255.4)
XYZ	xyz(18.5396, 18.1460, 57.1578)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677C8 #C88736

analogous

#36C0C8 #3677C8 #3E36C8

triadic

#3677C8 #C83677 #77C836

tetradic

#3677C8 #C836C0 #C88736 #36C83E

square

#3677C8 #C836C0 #C88736 #36C83E

split-complementary

#3677C8 #C83E36 #C0C836

monochromatic

#1C3E68 #295A98 #3677C8 #6697D6 #96B8E3

Accessibility & contrast

On white

4.54

#3677C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3677C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677C8

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677C8	#FFFFFF	#000000	##000000
##3677C8	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517DCB

Deuteranopia (green-blind)

#3970C6

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3677c8;
/* rgb */ color: rgb(54, 119, 200);
/* oklch */ color: oklch(56.8% 0.142 255.4);

Tailwind

colors: {
  custom: {
    50: '#7f9dd9',
    500: '#3677c8',
    950: '#000000',
  },
}

SCSS

$custom: #3677c8;
$custom-light: #7f9dd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3677c8",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 200
  },
  "hsl": {
    "h": 213.288,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.56777,
    "c": 0.14191,
    "h": 255.4
  },
  "luminance": 0.18148
}

Semantic roles & 50–950 ramp

primary

#3677C8

secondary

#CEB18C

accent

#9C47E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3677C8

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

Preview Lab → · Contrast checker → · Palette generator →