#1B4E50#1B4E50

#1B4E50 is a dark, muted teal. Relative luminance 0.063; OKLCH L 39.1% C 0.054 H 198.8°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E50
RGB	rgb(27, 78, 80)
HSL	hsl(182, 50%, 21%)
HSV	hsv(182, 66%, 31%)
CMYK	cmyk(66.3%, 2.5%, 0%, 68.6%)
CIE-LAB	lab(30.06, -16.01, -6.24)
CIE-LCH	lch(30.06, 17.18, 201.29°)
OKLab	oklab(39.1% -0.0507 -0.0173)
OKLCH	oklch(39.1% 0.054 198.8)
XYZ	xyz(4.6237, 6.2605, 8.5526)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E50 #501D1B

analogous

#1B5037 #1B4E50 #1B3350

triadic

#1B4E50 #501B4E #4E501B

tetradic

#1B4E50 #371B50 #501D1B #33501B

square

#1B4E50 #371B50 #501D1B #33501B

split-complementary

#1B4E50 #501B33 #50371B

monochromatic

#081617 #0C2122 #1B4E50 #2A7B7E #3AA7AC

Accessibility & contrast

On white

9.32

#1B4E50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B4E50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E50

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E50	#FFFFFF	#000000	##FFFFFF
##1B4E50	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484A50

Deuteranopia (green-blind)

#404450

Tritanopia (blue-blind)

#00514E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4e50;
/* rgb */ color: rgb(27, 78, 80);
/* oklch */ color: oklch(39.1% 0.054 198.8);

Tailwind

colors: {
  custom: {
    50: '#5f7f81',
    500: '#1b4e50',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e50;
$custom-light: #5f7f81;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e50",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 80
  },
  "hsl": {
    "h": 182.264,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.39102,
    "c": 0.05359,
    "h": 198.8
  },
  "luminance": 0.06261
}

Semantic roles & 50–950 ramp

primary

#1B4E50

secondary

#864441

accent

#544FD9

background

#F5F7F7

surface

#EAEEEE

border

#C6C9C9

text

#050A0A

muted

#797C7C

Preview Lab

Preview with #1B4E50

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

Preview Lab → · Contrast checker → · Palette generator →