#1B4B3A#1B4B3A

#1B4B3A is a dark, moderate teal. Relative luminance 0.056; OKLCH L 37.4% C 0.060 H 166.9°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B3A
RGB	rgb(27, 75, 58)
HSL	hsl(159, 47%, 20%)
HSV	hsv(159, 64%, 29%)
CMYK	cmyk(64%, 0%, 22.7%, 70.6%)
CIE-LAB	lab(28.30, -21.02, 5.34)
CIE-LCH	lch(28.30, 21.69, 165.76°)
OKLab	oklab(37.44% -0.0585 0.0137)
OKLCH	oklch(37.44% 0.06 166.9)
XYZ	xyz(3.7314, 5.5703, 4.8807)
Luminance	0.0557 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B3A #4B1B2C

analogous

#1B4B22 #1B4B3A #1B444B

triadic

#1B4B3A #3A1B4B #4B3A1B

tetradic

#1B4B3A #221B4B #4B1B2C #444B1B

square

#1B4B3A #221B4B #4B1B2C #444B1B

split-complementary

#1B4B3A #4B1B44 #4B221B

monochromatic

#081711 #0B1E17 #1B4B3A #2B785D #3BA580

Accessibility & contrast

On white

9.93

#1B4B3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1B4B3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B3A

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B3A	#FFFFFF	#000000	##FFFFFF
##1B4B3A	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494639

Deuteranopia (green-blind)

#42413B

Tritanopia (blue-blind)

#034B46

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1b4b3a;
/* rgb */ color: rgb(27, 75, 58);
/* oklch */ color: oklch(37.4% 0.060 166.9);

Tailwind

colors: {
  custom: {
    50: '#5d7d70',
    500: '#1b4b3a',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b3a;
$custom-light: #5d7d70;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b3a",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 58
  },
  "hsl": {
    "h": 158.75,
    "s": 47.059,
    "l": 20
  },
  "oklch": {
    "l": 0.37444,
    "c": 0.06011,
    "h": 166.9
  },
  "luminance": 0.05571
}

Semantic roles & 50–950 ramp

primary

#1B4B3A

secondary

#814158

accent

#5180D7

background

#F5F7F6

surface

#E9EEEC

border

#C5C9C7

text

#040A07

muted

#797C7A

Preview Lab

Preview with #1B4B3A

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

Preview Lab → · Contrast checker → · Palette generator →