#3680B4#3680B4

#3680B4 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.108 H 242.6°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3680B4
RGB	rgb(54, 128, 180)
HSL	hsl(205, 54%, 46%)
HSV	hsv(205, 70%, 71%)
CMYK	cmyk(70%, 28.9%, 0%, 29.4%)
CIE-LAB	lab(51.29, -5.71, -34.08)
CIE-LCH	lch(51.29, 34.55, 260.49°)
OKLab	oklab(57.71% -0.0498 -0.0962)
OKLCH	oklch(57.71% 0.108 242.6)
XYZ	xyz(17.4756, 19.5160, 46.0171)
Luminance	0.1952 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680B4 #B46A36

analogous

#36B4A9 #3680B4 #3641B4

triadic

#3680B4 #B43680 #80B436

tetradic

#3680B4 #A936B4 #B46A36 #41B436

square

#3680B4 #A936B4 #B46A36 #41B436

split-complementary

#3680B4 #B43641 #B4A936

monochromatic

#1A3D56 #285F85 #3680B4 #5A9ECD #89B9DC

Accessibility & contrast

On white

4.28

#3680B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#3680B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680B4

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680B4	#FFFFFF	#000000	##000000
##3680B4	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B6

Deuteranopia (green-blind)

#5775B3

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3680b4;
/* rgb */ color: rgb(54, 128, 180);
/* oklch */ color: oklch(57.7% 0.108 242.6);

Tailwind

colors: {
  custom: {
    50: '#7ca4ca',
    500: '#3680b4',
    950: '#000000',
  },
}

SCSS

$custom: #3680b4;
$custom-light: #7ca4ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3680b4",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 180
  },
  "hsl": {
    "h": 204.762,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.57705,
    "c": 0.10837,
    "h": 242.6
  },
  "luminance": 0.19518
}

Semantic roles & 50–950 ramp

primary

#3680B4

secondary

#C69D80

accent

#874BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3680B4

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

Preview Lab → · Contrast checker → · Palette generator →