#1B503B#1B503B

#1B503B is a dark, moderate teal. Relative luminance 0.063; OKLCH L 38.9% C 0.067 H 163.9°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B503B
RGB	rgb(27, 80, 59)
HSL	hsl(156, 50%, 21%)
HSV	hsv(156, 66%, 31%)
CMYK	cmyk(66.3%, 0%, 26.2%, 68.6%)
CIE-LAB	lab(30.12, -23.31, 7.27)
CIE-LCH	lch(30.12, 24.42, 162.68°)
OKLab	oklab(38.94% -0.0643 0.0186)
OKLCH	oklch(38.94% 0.067 163.9)
XYZ	xyz(4.1097, 6.2857, 5.1335)
Luminance	0.0629 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B503B #501B30

analogous

#1B5020 #1B503B #1B4A50

triadic

#1B503B #3B1B50 #503B1B

tetradic

#1B503B #201B50 #501B30 #4A501B

square

#1B503B #201B50 #501B30 #4A501B

split-complementary

#1B503B #501B4A #50201B

monochromatic

#081711 #0C2219 #1B503B #2A7E5D #3AAC7E

Accessibility & contrast

On white

9.30

#1B503B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1B503B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B503B

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B503B	#FFFFFF	#000000	##FFFFFF
##1B503B	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4A3A

Deuteranopia (green-blind)

#47453C

Tritanopia (blue-blind)

#00504A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b503b;
/* rgb */ color: rgb(27, 80, 59);
/* oklch */ color: oklch(38.9% 0.067 163.9);

Tailwind

colors: {
  custom: {
    50: '#5e8171',
    500: '#1b503b',
    950: '#000000',
  },
}

SCSS

$custom: #1b503b;
$custom-light: #5e8171;
$custom-dark: #000000;

JSON

{
  "hex": "#1b503b",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 59
  },
  "hsl": {
    "h": 156.226,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.38938,
    "c": 0.06698,
    "h": 163.9
  },
  "luminance": 0.06286
}

Semantic roles & 50–950 ramp

primary

#1B503B

secondary

#86415C

accent

#4F86D9

background

#F5F7F6

surface

#E9EEEC

border

#C5C9C7

text

#050A07

muted

#797C7A

Preview Lab

Preview with #1B503B

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

Preview Lab → · Contrast checker → · Palette generator →