#1B718F#1B718F

#1B718F is a mid, moderate cyan. Relative luminance 0.140; OKLCH L 51.4% C 0.090 H 226.8°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B718F
RGB	rgb(27, 113, 143)
HSL	hsl(196, 68%, 33%)
HSV	hsv(196, 81%, 56%)
CMYK	cmyk(81.1%, 21%, 0%, 43.9%)
CIE-LAB	lab(44.27, -13.83, -23.41)
CIE-LCH	lch(44.27, 27.19, 239.43°)
OKLab	oklab(51.37% -0.0617 -0.0658)
OKLCH	oklch(51.37% 0.09 226.8)
XYZ	xyz(11.3130, 14.0250, 28.0921)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B718F #8F391B

analogous

#1B8F73 #1B718F #1B378F

triadic

#1B718F #8F1B71 #718F1B

tetradic

#1B718F #731B8F #8F391B #378F1B

square

#1B718F #731B8F #8F391B #378F1B

split-complementary

#1B718F #8F1B37 #8F731B

monochromatic

#082028 #11485C #1B718F #259AC2 #48B6DC

Accessibility & contrast

On white

5.52

#1B718F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#1B718F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B718F

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B718F	#FFFFFF	#000000	##FFFFFF
##1B718F	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616F90

Deuteranopia (green-blind)

#52648F

Tritanopia (blue-blind)

#007A7B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #1b718f;
/* rgb */ color: rgb(27, 113, 143);
/* oklch */ color: oklch(51.4% 0.090 226.8);

Tailwind

colors: {
  custom: {
    50: '#6c99b0',
    500: '#1b718f',
    950: '#000000',
  },
}

SCSS

$custom: #1b718f;
$custom-light: #6c99b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b718f",
  "rgb": {
    "r": 27,
    "g": 113,
    "b": 143
  },
  "hsl": {
    "h": 195.517,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.51371,
    "c": 0.09017,
    "h": 226.8
  },
  "luminance": 0.14026
}

Semantic roles & 50–950 ramp

primary

#1B718F

secondary

#BE6648

accent

#6A3DEB

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B718F

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

Preview Lab → · Contrast checker → · Palette generator →