#1680B4#1680B4

#1680B4 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.9% C 0.119 H 237.3°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#1680B4
RGB	rgb(22, 128, 180)
HSL	hsl(200, 78%, 40%)
HSV	hsv(200, 88%, 71%)
CMYK	cmyk(87.8%, 28.9%, 0%, 29.4%)
CIE-LAB	lab(50.57, -9.24, -35.25)
CIE-LCH	lch(50.57, 36.44, 255.30°)
OKLab	oklab(56.94% -0.0641 -0.0999)
OKLCH	oklch(56.94% 0.119 237.3)
XYZ	xyz(16.2849, 18.9021, 45.9613)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1680B4 #B44A16

analogous

#16B499 #1680B4 #1631B4

triadic

#1680B4 #B41680 #80B416

tetradic

#1680B4 #9916B4 #B44A16 #31B416

square

#1680B4 #9916B4 #B44A16 #31B416

split-complementary

#1680B4 #B41631 #B49916

monochromatic

#093247 #0F597D #1680B4 #23A5E4 #5ABBEB

Accessibility & contrast

On white

4.39

#1680B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#1680B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1680B4

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1680B4	#FFFFFF	#000000	##000000
##1680B4	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B6

Deuteranopia (green-blind)

#5272B3

Tritanopia (blue-blind)

#008D92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #1680b4;
/* rgb */ color: rgb(22, 128, 180);
/* oklch */ color: oklch(56.9% 0.119 237.3);

Tailwind

colors: {
  custom: {
    50: '#73a4ca',
    500: '#1680b4',
    950: '#000000',
  },
}

SCSS

$custom: #1680b4;
$custom-light: #73a4ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1680b4",
  "rgb": {
    "r": 22,
    "g": 128,
    "b": 180
  },
  "hsl": {
    "h": 199.747,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.56936,
    "c": 0.11868,
    "h": 237.3
  },
  "luminance": 0.18904
}

Semantic roles & 50–950 ramp

primary

#1680B4

secondary

#CE7F58

accent

#7333F5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #1680B4

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

Preview Lab → · Contrast checker → · Palette generator →