#1B4B4E#1B4B4E

#1B4B4E is a dark, muted teal. Relative luminance 0.058; OKLCH L 38.2% C 0.051 H 200.9°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B4E
RGB	rgb(27, 75, 78)
HSL	hsl(184, 49%, 21%)
HSV	hsv(184, 65%, 31%)
CMYK	cmyk(65.4%, 3.8%, 0%, 69.4%)
CIE-LAB	lab(28.94, -14.96, -6.63)
CIE-LCH	lch(28.94, 16.36, 203.90°)
OKLab	oklab(38.17% -0.048 -0.0184)
OKLCH	oklch(38.17% 0.051 200.9)
XYZ	xyz(4.3426, 5.8148, 8.0998)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B4E #4E1E1B

analogous

#1B4E37 #1B4B4E #1B314E

triadic

#1B4B4E #4E1B4B #4B4E1B

tetradic

#1B4B4E #371B4E #4E1E1B #314E1B

square

#1B4B4E #371B4E #4E1E1B #314E1B

split-complementary

#1B4B4E #4E1B31 #4E371B

monochromatic

#081617 #0B1F21 #1B4B4E #2B777B #3AA2A9

Accessibility & contrast

On white

9.71

#1B4B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1B4B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B4E

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B4E	#FFFFFF	#000000	##FFFFFF
##1B4B4E	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45484E

Deuteranopia (green-blind)

#3D424E

Tritanopia (blue-blind)

#004E4C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1b4b4e;
/* rgb */ color: rgb(27, 75, 78);
/* oklch */ color: oklch(38.2% 0.051 200.9);

Tailwind

colors: {
  custom: {
    50: '#5e7d7f',
    500: '#1b4b4e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b4e;
$custom-light: #5e7d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b4e",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 78
  },
  "hsl": {
    "h": 183.529,
    "s": 48.571,
    "l": 20.588
  },
  "oklch": {
    "l": 0.38174,
    "c": 0.05138,
    "h": 200.9
  },
  "luminance": 0.05815
}

Semantic roles & 50–950 ramp

primary

#1B4B4E

secondary

#844541

accent

#5850D8

background

#F5F7F7

surface

#E9EEEE

border

#C5C9C9

text

#05090A

muted

#797B7C

Preview Lab

Preview with #1B4B4E

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

Preview Lab → · Contrast checker → · Palette generator →