#1B503F#1B503F

#1B503F is a dark, moderate teal. Relative luminance 0.063; OKLCH L 39.1% C 0.063 H 168.6°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B503F
RGB	rgb(27, 80, 63)
HSL	hsl(161, 50%, 21%)
HSV	hsv(161, 66%, 31%)
CMYK	cmyk(66.3%, 0%, 21.2%, 68.6%)
CIE-LAB	lab(30.23, -22.24, 4.88)
CIE-LCH	lch(30.23, 22.77, 167.62°)
OKLab	oklab(39.06% -0.0622 0.0125)
OKLCH	oklch(39.06% 0.063 168.6)
XYZ	xyz(4.2174, 6.3288, 5.7010)
Luminance	0.0633 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B503F #501B2C

analogous

#1B5024 #1B503F #1B4650

triadic

#1B503F #3F1B50 #503F1B

tetradic

#1B503F #241B50 #501B2C #46501B

square

#1B503F #241B50 #501B2C #46501B

split-complementary

#1B503F #501B46 #50241B

monochromatic

#081712 #0C221B #1B503F #2A7E63 #3AAC87

Accessibility & contrast

On white

9.27

#1B503F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B503F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B503F

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B503F	#FFFFFF	#000000	##FFFFFF
##1B503F	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4A3E

Deuteranopia (green-blind)

#464540

Tritanopia (blue-blind)

#00504B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b503f;
/* rgb */ color: rgb(27, 80, 63);
/* oklch */ color: oklch(39.1% 0.063 168.6);

Tailwind

colors: {
  custom: {
    50: '#5e8174',
    500: '#1b503f',
    950: '#000000',
  },
}

SCSS

$custom: #1b503f;
$custom-light: #5e8174;
$custom-dark: #000000;

JSON

{
  "hex": "#1b503f",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 63
  },
  "hsl": {
    "h": 160.755,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.39059,
    "c": 0.06341,
    "h": 168.6
  },
  "luminance": 0.06329
}

Semantic roles & 50–950 ramp

primary

#1B503F

secondary

#864157

accent

#4F7BD9

background

#F5F7F7

surface

#E9EEED

border

#C5C9C8

text

#050A08

muted

#797C7B

Preview Lab

Preview with #1B503F

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

Preview Lab → · Contrast checker → · Palette generator →