#1B8B3B#1B8B3B

#1B8B3B is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.9% C 0.152 H 147.8°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B8B3B
RGB	rgb(27, 139, 59)
HSL	hsl(137, 67%, 33%)
HSV	hsv(137, 81%, 55%)
CMYK	cmyk(80.6%, 0%, 57.6%, 45.5%)
CIE-LAB	lab(50.70, -47.80, 33.92)
CIE-LCH	lch(50.70, 58.61, 144.64°)
OKLab	oklab(55.91% -0.1285 0.0809)
OKLCH	oklch(55.91% 0.152 147.8)
XYZ	xyz(10.4732, 19.0128, 7.2547)
Luminance	0.1901 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8B3B #8B1B6B

analogous

#338B1B #1B8B3B #1B8B73

triadic

#1B8B3B #3B1B8B #8B3B1B

tetradic

#1B8B3B #1B338B #8B1B6B #8B731B

square

#1B8B3B #1B338B #8B1B6B #8B731B

split-complementary

#1B8B3B #731B8B #8B1B33

monochromatic

#07250F #115825 #1B8B3B #25BE51 #45DB70

Accessibility & contrast

On white

4.37

#1B8B3B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#1B8B3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8B3B

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8B3B	#FFFFFF	#000000	##000000
##1B8B3B	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7E33

Deuteranopia (green-blind)

#807541

Tritanopia (blue-blind)

#008879

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #1b8b3b;
/* rgb */ color: rgb(27, 139, 59);
/* oklch */ color: oklch(55.9% 0.152 147.8);

Tailwind

colors: {
  custom: {
    50: '#6cae73',
    500: '#1b8b3b',
    950: '#000000',
  },
}

SCSS

$custom: #1b8b3b;
$custom-light: #6cae73;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8b3b",
  "rgb": {
    "r": 27,
    "g": 139,
    "b": 59
  },
  "hsl": {
    "h": 137.143,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.5591,
    "c": 0.15183,
    "h": 147.8
  },
  "luminance": 0.19014
}

Semantic roles & 50–950 ramp

primary

#1B8B3B

secondary

#BC459A

accent

#3DB9EA

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081008

muted

#7B7F7B

Preview Lab

Preview with #1B8B3B

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

Preview Lab → · Contrast checker → · Palette generator →