#1B818F#1B818F

#1B818F is a mid, moderate teal. Relative luminance 0.179; OKLCH L 55.5% C 0.089 H 209.1°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#1B818F
RGB	rgb(27, 129, 143)
HSL	hsl(187, 68%, 33%)
HSV	hsv(187, 81%, 56%)
CMYK	cmyk(81.1%, 9.8%, 0%, 43.9%)
CIE-LAB	lab(49.39, -22.56, -15.55)
CIE-LCH	lch(49.39, 27.40, 214.58°)
OKLab	oklab(55.5% -0.0778 -0.0433)
OKLCH	oklch(55.5% 0.089 209.1)
XYZ	xyz(13.2580, 17.9150, 28.7405)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B818F #8F291B

analogous

#1B8F63 #1B818F #1B478F

triadic

#1B818F #8F1B81 #818F1B

tetradic

#1B818F #631B8F #8F291B #478F1B

square

#1B818F #631B8F #8F291B #478F1B

split-complementary

#1B818F #8F1B47 #8F631B

monochromatic

#082428 #11535C #1B818F #25AFC2 #48CBDC

Accessibility & contrast

On white

4.58

#1B818F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#1B818F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B818F

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B818F	#FFFFFF	#000000	##000000
##1B818F	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757C90

Deuteranopia (green-blind)

#65718F

Tritanopia (blue-blind)

#008785

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #1b818f;
/* rgb */ color: rgb(27, 129, 143);
/* oklch */ color: oklch(55.5% 0.089 209.1);

Tailwind

colors: {
  custom: {
    50: '#6ea6af',
    500: '#1b818f',
    950: '#000000',
  },
}

SCSS

$custom: #1b818f;
$custom-light: #6ea6af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b818f",
  "rgb": {
    "r": 27,
    "g": 129,
    "b": 143
  },
  "hsl": {
    "h": 187.241,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.55495,
    "c": 0.08909,
    "h": 209.1
  },
  "luminance": 0.17917
}

Semantic roles & 50–950 ramp

primary

#1B818F

secondary

#BE5648

accent

#523DEB

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #1B818F

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

Preview Lab → · Contrast checker → · Palette generator →