#1B8B2B#1B8B2B

#1B8B2B is a mid, vivid green. Relative luminance 0.189; OKLCH L 55.7% C 0.165 H 144.7°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#1B8B2B
RGB	rgb(27, 139, 43)
HSL	hsl(129, 67%, 33%)
HSV	hsv(129, 81%, 55%)
CMYK	cmyk(80.6%, 0%, 69.1%, 45.5%)
CIE-LAB	lab(50.54, -49.81, 41.26)
CIE-LCH	lch(50.54, 64.68, 140.36°)
OKLab	oklab(55.72% -0.1345 0.0952)
OKLCH	oklch(55.72% 0.165 144.7)
XYZ	xyz(10.1200, 18.8715, 5.3942)
Luminance	0.1887 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8B2B #8B1B7B

analogous

#438B1B #1B8B2B #1B8B63

triadic

#1B8B2B #2B1B8B #8B2B1B

tetradic

#1B8B2B #1B438B #8B1B7B #8B631B

square

#1B8B2B #1B438B #8B1B7B #8B631B

split-complementary

#1B8B2B #631B8B #8B1B43

monochromatic

#07250B #11581B #1B8B2B #25BE3B #45DB5B

Accessibility & contrast

On white

4.40

#1B8B2B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#1B8B2B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8B2B

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8B2B	#FFFFFF	#000000	##000000
##1B8B2B	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D1E

Deuteranopia (green-blind)

#817534

Tritanopia (blue-blind)

#008777

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #1b8b2b;
/* rgb */ color: rgb(27, 139, 43);
/* oklch */ color: oklch(55.7% 0.165 144.7);

Tailwind

colors: {
  custom: {
    50: '#6dae69',
    500: '#1b8b2b',
    950: '#000000',
  },
}

SCSS

$custom: #1b8b2b;
$custom-light: #6dae69;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8b2b",
  "rgb": {
    "r": 27,
    "g": 139,
    "b": 43
  },
  "hsl": {
    "h": 128.571,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.55719,
    "c": 0.16473,
    "h": 144.7
  },
  "luminance": 0.18873
}

Semantic roles & 50–950 ramp

primary

#1B8B2B

secondary

#BC45AB

accent

#3DD2EA

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081007

muted

#7B7F7A

Preview Lab

Preview with #1B8B2B

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

Preview Lab → · Contrast checker → · Palette generator →