#1B718B#1B718B

#1B718B is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.2% C 0.087 H 223.3°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B718B
RGB	rgb(27, 113, 139)
HSL	hsl(194, 67%, 33%)
HSV	hsv(194, 81%, 55%)
CMYK	cmyk(80.6%, 18.7%, 0%, 45.5%)
CIE-LAB	lab(44.10, -15.27, -21.29)
CIE-LCH	lch(44.10, 26.20, 234.36°)
OKLab	oklab(51.18% -0.0633 -0.0597)
OKLCH	oklch(51.18% 0.087 223.3)
XYZ	xyz(11.0154, 13.9060, 26.5247)
Luminance	0.1391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B718B #8B351B

analogous

#1B8B6D #1B718B #1B398B

triadic

#1B718B #8B1B71 #718B1B

tetradic

#1B718B #6D1B8B #8B351B #398B1B

square

#1B718B #6D1B8B #8B351B #398B1B

split-complementary

#1B718B #8B1B39 #8B6D1B

monochromatic

#071E25 #114758 #1B718B #259BBE #45B8DB

Accessibility & contrast

On white

5.55

#1B718B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#1B718B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B718B

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B718B	#FFFFFF	#000000	##FFFFFF
##1B718B	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#626E8C

Deuteranopia (green-blind)

#53648B

Tritanopia (blue-blind)

#007979

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #1b718b;
/* rgb */ color: rgb(27, 113, 139);
/* oklch */ color: oklch(51.2% 0.087 223.3);

Tailwind

colors: {
  custom: {
    50: '#6b9aad',
    500: '#1b718b',
    950: '#000000',
  },
}

SCSS

$custom: #1b718b;
$custom-light: #6b9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b718b",
  "rgb": {
    "r": 27,
    "g": 113,
    "b": 139
  },
  "hsl": {
    "h": 193.929,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.51178,
    "c": 0.087,
    "h": 223.3
  },
  "luminance": 0.13907
}

Semantic roles & 50–950 ramp

primary

#1B718B

secondary

#BC6145

accent

#663DEA

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #1B718B

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

Preview Lab → · Contrast checker → · Palette generator →