#3680B6#3680B6

#3680B6 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.8% C 0.111 H 243.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3680B6
RGB	rgb(54, 128, 182)
HSL	hsl(205, 54%, 46%)
HSV	hsv(205, 70%, 71%)
CMYK	cmyk(70.3%, 29.7%, 0%, 28.6%)
CIE-LAB	lab(51.38, -5.01, -35.08)
CIE-LCH	lch(51.38, 35.44, 261.88°)
OKLab	oklab(57.81% -0.0492 -0.0991)
OKLCH	oklch(57.81% 0.111 243.6)
XYZ	xyz(17.6808, 19.5981, 47.0979)
Luminance	0.1960 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680B6 #B66C36

analogous

#36B6AC #3680B6 #3640B6

triadic

#3680B6 #B63680 #80B636

tetradic

#3680B6 #AC36B6 #B66C36 #40B636

square

#3680B6 #AC36B6 #B66C36 #40B636

split-complementary

#3680B6 #B63640 #B6AC36

monochromatic

#1A3E58 #285F87 #3680B6 #5B9ECE #8ABADC

Accessibility & contrast

On white

4.27

#3680B6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#3680B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680B6

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680B6	#FFFFFF	#000000	##000000
##3680B6	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6781B8

Deuteranopia (green-blind)

#5675B5

Tritanopia (blue-blind)

#008D93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3680b6;
/* rgb */ color: rgb(54, 128, 182);
/* oklch */ color: oklch(57.8% 0.111 243.6);

Tailwind

colors: {
  custom: {
    50: '#7ca4cc',
    500: '#3680b6',
    950: '#000000',
  },
}

SCSS

$custom: #3680b6;
$custom-light: #7ca4cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3680b6",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 182
  },
  "hsl": {
    "h": 205.313,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.57811,
    "c": 0.11067,
    "h": 243.6
  },
  "luminance": 0.196
}

Semantic roles & 50–950 ramp

primary

#3680B6

secondary

#C69E81

accent

#884ADE

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3680B6

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

Preview Lab → · Contrast checker → · Palette generator →