#1B838B#1B838B

#1B838B is a mid, moderate teal. Relative luminance 0.183; OKLCH L 55.9% C 0.089 H 203.0°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B838B
RGB	rgb(27, 131, 139)
HSL	hsl(184, 67%, 33%)
HSV	hsv(184, 81%, 55%)
CMYK	cmyk(80.6%, 5.8%, 0%, 45.5%)
CIE-LAB	lab(49.89, -24.91, -12.45)
CIE-LCH	lch(49.89, 27.85, 206.55°)
OKLab	oklab(55.85% -0.0817 -0.0346)
OKLCH	oklch(55.85% 0.089 203)
XYZ	xyz(13.2264, 18.3280, 27.2617)
Luminance	0.1833 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B838B #8B231B

analogous

#1B8B5B #1B838B #1B4B8B

triadic

#1B838B #8B1B83 #838B1B

tetradic

#1B838B #5B1B8B #8B231B #4B8B1B

square

#1B838B #5B1B8B #8B231B #4B8B1B

split-complementary

#1B838B #8B1B4B #8B5B1B

monochromatic

#072225 #115358 #1B838B #25B3BE #45D0DB

Accessibility & contrast

On white

4.50

#1B838B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#1B838B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B838B

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B838B	#FFFFFF	#000000	##000000
##1B838B	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#787D8C

Deuteranopia (green-blind)

#69728B

Tritanopia (blue-blind)

#008985

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #1b838b;
/* rgb */ color: rgb(27, 131, 139);
/* oklch */ color: oklch(55.9% 0.089 203.0);

Tailwind

colors: {
  custom: {
    50: '#6da7ac',
    500: '#1b838b',
    950: '#000000',
  },
}

SCSS

$custom: #1b838b;
$custom-light: #6da7ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b838b",
  "rgb": {
    "r": 27,
    "g": 131,
    "b": 139
  },
  "hsl": {
    "h": 184.286,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.5585,
    "c": 0.0887,
    "h": 203
  },
  "luminance": 0.1833
}

Semantic roles & 50–950 ramp

primary

#1B838B

secondary

#BC4E45

accent

#4A3DEA

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #1B838B

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

Preview Lab → · Contrast checker → · Palette generator →