#1F728B#1F728B

#1F728B is a mid, moderate cyan. Relative luminance 0.142; OKLCH L 51.5% C 0.085 H 222.7°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F728B
RGB	rgb(31, 114, 139)
HSL	hsl(194, 64%, 33%)
HSV	hsv(194, 78%, 55%)
CMYK	cmyk(77.7%, 18%, 0%, 45.5%)
CIE-LAB	lab(44.50, -15.36, -20.66)
CIE-LCH	lch(44.50, 25.75, 233.37°)
OKLab	oklab(51.53% -0.0626 -0.0578)
OKLCH	oklch(51.53% 0.085 222.7)
XYZ	xyz(11.2406, 14.1887, 26.5674)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F728B #8B381F

analogous

#1F8B6E #1F728B #1F3C8B

triadic

#1F728B #8B1F72 #728B1F

tetradic

#1F728B #6E1F8B #8B381F #3C8B1F

square

#1F728B #6E1F8B #8B381F #3C8B1F

split-complementary

#1F728B #8B1F3C #8B6E1F

monochromatic

#092027 #144959 #1F728B #2A9BBD #4DB7D7

Accessibility & contrast

On white

5.47

#1F728B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#1F728B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F728B

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F728B	#FFFFFF	#000000	##FFFFFF
##1F728B	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#646F8C

Deuteranopia (green-blind)

#55658B

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #1f728b;
/* rgb */ color: rgb(31, 114, 139);
/* oklch */ color: oklch(51.5% 0.085 222.7);

Tailwind

colors: {
  custom: {
    50: '#6c9aad',
    500: '#1f728b',
    950: '#000000',
  },
}

SCSS

$custom: #1f728b;
$custom-light: #6c9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f728b",
  "rgb": {
    "r": 31,
    "g": 114,
    "b": 139
  },
  "hsl": {
    "h": 193.889,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.51526,
    "c": 0.08527,
    "h": 222.7
  },
  "luminance": 0.1419
}

Semantic roles & 50–950 ramp

primary

#1F728B

secondary

#BA654C

accent

#6841E7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1F728B

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

Preview Lab → · Contrast checker → · Palette generator →