#1B5152#1B5152

#1B5152 is a dark, muted teal. Relative luminance 0.067; OKLCH L 40.0% C 0.056 H 196.9°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#1B5152
RGB	rgb(27, 81, 82)
HSL	hsl(181, 50%, 21%)
HSV	hsv(181, 67%, 32%)
CMYK	cmyk(67.1%, 1.2%, 0%, 67.8%)
CIE-LAB	lab(31.18, -17.04, -5.85)
CIE-LCH	lch(31.18, 18.02, 198.94°)
OKLab	oklab(40.03% -0.0534 -0.0162)
OKLCH	oklch(40.03% 0.056 196.9)
XYZ	xyz(4.9168, 6.7265, 9.0202)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5152 #521C1B

analogous

#1B5238 #1B5152 #1B3652

triadic

#1B5152 #521B51 #51521B

tetradic

#1B5152 #381B52 #521C1B #36521B

square

#1B5152 #381B52 #521C1B #36521B

split-complementary

#1B5152 #521B36 #52381B

monochromatic

#081717 #0C2424 #1B5152 #2A7E80 #39ACAE

Accessibility & contrast

On white

8.95

#1B5152 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1B5152 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5152

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5152	#FFFFFF	#000000	##FFFFFF
##1B5152	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4D52

Deuteranopia (green-blind)

#434752

Tritanopia (blue-blind)

#005451

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b5152;
/* rgb */ color: rgb(27, 81, 82);
/* oklch */ color: oklch(40.0% 0.056 196.9);

Tailwind

colors: {
  custom: {
    50: '#608282',
    500: '#1b5152',
    950: '#000000',
  },
}

SCSS

$custom: #1b5152;
$custom-light: #608282;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5152",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 82
  },
  "hsl": {
    "h": 181.091,
    "s": 50.459,
    "l": 21.373
  },
  "oklch": {
    "l": 0.40028,
    "c": 0.05583,
    "h": 196.9
  },
  "luminance": 0.06727
}

Semantic roles & 50–950 ramp

primary

#1B5152

secondary

#884241

accent

#504EDA

background

#F5F7F7

surface

#EAEEEE

border

#C6C9C9

text

#050A0A

muted

#797C7C

Preview Lab

Preview with #1B5152

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

Preview Lab → · Contrast checker → · Palette generator →