#1B833B#1B833B

#1B833B is a mid, vivid green. Relative luminance 0.168; OKLCH L 53.7% C 0.141 H 148.6°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#1B833B
RGB	rgb(27, 131, 59)
HSL	hsl(138, 66%, 31%)
HSV	hsv(138, 79%, 51%)
CMYK	cmyk(79.4%, 0%, 55%, 48.6%)
CIE-LAB	lab(47.98, -44.91, 30.64)
CIE-LCH	lch(47.98, 54.37, 145.69°)
OKLab	oklab(53.66% -0.1207 0.0737)
OKLCH	oklch(53.66% 0.141 148.6)
XYZ	xyz(9.3570, 16.7803, 6.8826)
Luminance	0.1678 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B833B #831B63

analogous

#2F831B #1B833B #1B836F

triadic

#1B833B #3B1B83 #833B1B

tetradic

#1B833B #1B2F83 #831B63 #836F1B

square

#1B833B #1B2F83 #831B63 #836F1B

split-complementary

#1B833B #6F1B83 #831B2F

monochromatic

#061E0D #115024 #1B833B #25B652 #41D86F

Accessibility & contrast

On white

4.82

#1B833B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#1B833B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B833B

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B833B	#FFFFFF	#000000	##FFFFFF
##1B833B	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847735

Deuteranopia (green-blind)

#786F40

Tritanopia (blue-blind)

#008073

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #1b833b;
/* rgb */ color: rgb(27, 131, 59);
/* oklch */ color: oklch(53.7% 0.141 148.6);

Tailwind

colors: {
  custom: {
    50: '#6aa873',
    500: '#1b833b',
    950: '#000000',
  },
}

SCSS

$custom: #1b833b;
$custom-light: #6aa873;
$custom-dark: #000000;

JSON

{
  "hex": "#1b833b",
  "rgb": {
    "r": 27,
    "g": 131,
    "b": 59
  },
  "hsl": {
    "h": 138.462,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53656,
    "c": 0.14142,
    "h": 148.6
  },
  "luminance": 0.16781
}

Semantic roles & 50–950 ramp

primary

#1B833B

secondary

#B64393

accent

#3FB5E9

background

#F6FAF7

surface

#ECF4ED

border

#C7CEC8

text

#071008

muted

#7A7F7B

Preview Lab

Preview with #1B833B

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

Preview Lab → · Contrast checker → · Palette generator →