#3680B3#3680B3

#3680B3 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.107 H 242.1°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3680B3
RGB	rgb(54, 128, 179)
HSL	hsl(204, 54%, 46%)
HSV	hsv(204, 70%, 70%)
CMYK	cmyk(69.8%, 28.5%, 0%, 29.8%)
CIE-LAB	lab(51.24, -6.06, -33.58)
CIE-LCH	lch(51.24, 34.12, 259.77°)
OKLab	oklab(57.65% -0.0501 -0.0948)
OKLCH	oklch(57.65% 0.107 242.1)
XYZ	xyz(17.3741, 19.4754, 45.4826)
Luminance	0.1948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680B3 #B36936

analogous

#36B3A7 #3680B3 #3641B3

triadic

#3680B3 #B33680 #80B336

tetradic

#3680B3 #A736B3 #B36936 #41B336

square

#3680B3 #A736B3 #B36936 #41B336

split-complementary

#3680B3 #B33641 #B3A736

monochromatic

#1A3D55 #285E84 #3680B3 #599ECD #88B9DB

Accessibility & contrast

On white

4.29

#3680B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#3680B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680B3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680B3	#FFFFFF	#000000	##000000
##3680B3	1.00	4.29	4.90	4.90
#FFFFFF	4.29	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)

#6981B5

Deuteranopia (green-blind)

#5875B2

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3680b3;
/* rgb */ color: rgb(54, 128, 179);
/* oklch */ color: oklch(57.7% 0.107 242.1);

Tailwind

colors: {
  custom: {
    50: '#7ca4ca',
    500: '#3680b3',
    950: '#000000',
  },
}

SCSS

$custom: #3680b3;
$custom-light: #7ca4ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3680b3",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 179
  },
  "hsl": {
    "h": 204.48,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57653,
    "c": 0.10722,
    "h": 242.1
  },
  "luminance": 0.19477
}

Semantic roles & 50–950 ramp

primary

#3680B3

secondary

#C59C80

accent

#864BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3680B3

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

Preview Lab → · Contrast checker → · Palette generator →