#1B4F47#1B4F47

#1B4F47 is a dark, muted teal. Relative luminance 0.063; OKLCH L 39.0% C 0.057 H 181.4°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F47
RGB	rgb(27, 79, 71)
HSL	hsl(171, 49%, 21%)
HSV	hsv(171, 66%, 31%)
CMYK	cmyk(65.8%, 0%, 10.1%, 69%)
CIE-LAB	lab(30.11, -19.41, -0.40)
CIE-LCH	lch(30.11, 19.42, 181.18°)
OKLab	oklab(39.04% -0.0566 -0.0014)
OKLCH	oklch(39.04% 0.057 181.4)
XYZ	xyz(4.3848, 6.2795, 6.9410)
Luminance	0.0628 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F47 #4F1B23

analogous

#1B4F2D #1B4F47 #1B3D4F

triadic

#1B4F47 #471B4F #4F471B

tetradic

#1B4F47 #2D1B4F #4F1B23 #3D4F1B

square

#1B4F47 #2D1B4F #4F1B23 #3D4F1B

split-complementary

#1B4F47 #4F1B3D #4F2D1B

monochromatic

#081714 #0B211E #1B4F47 #2B7D70 #3AAA99

Accessibility & contrast

On white

9.31

#1B4F47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B4F47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F47

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F47	#FFFFFF	#000000	##FFFFFF
##1B4F47	1.00	9.31	2.26	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4A47

Deuteranopia (green-blind)

#434448

Tritanopia (blue-blind)

#00504D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4f47;
/* rgb */ color: rgb(27, 79, 71);
/* oklch */ color: oklch(39.0% 0.057 181.4);

Tailwind

colors: {
  custom: {
    50: '#5e807a',
    500: '#1b4f47',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f47;
$custom-light: #5e807a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f47",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 71
  },
  "hsl": {
    "h": 170.769,
    "s": 49.057,
    "l": 20.784
  },
  "oklch": {
    "l": 0.39039,
    "c": 0.05663,
    "h": 181.4
  },
  "luminance": 0.0628
}

Semantic roles & 50–950 ramp

primary

#1B4F47

secondary

#85414B

accent

#4F64D9

background

#F5F7F7

surface

#E9EEED

border

#C5C9C8

text

#050A09

muted

#797C7B

Preview Lab

Preview with #1B4F47

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

Preview Lab → · Contrast checker → · Palette generator →