#81B233#81B233

#81B233 is a light, vivid yellow-green. Relative luminance 0.367; OKLCH L 70.4% C 0.162 H 128.4°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#81B233
RGB	rgb(129, 178, 51)
HSL	hsl(83, 55%, 45%)
HSV	hsv(83, 71%, 70%)
CMYK	cmyk(27.5%, 0%, 71.3%, 30.2%)
CIE-LAB	lab(67.09, -35.35, 56.53)
CIE-LCH	lch(67.09, 66.67, 122.02°)
OKLab	oklab(70.43% -0.1009 0.1271)
OKLCH	oklch(70.43% 0.162 128.4)
XYZ	xyz(25.5712, 36.7463, 8.8768)
Luminance	0.3675 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81B233 #6433B2

analogous

#B2A433 #81B233 #41B233

triadic

#81B233 #3381B2 #B23381

tetradic

#81B233 #33B2A4 #6433B2 #B23341

square

#81B233 #33B2A4 #6433B2 #B23341

split-complementary

#81B233 #3341B2 #A433B2

monochromatic

#3C5318 #5F8225 #81B233 #9FCE54 #BADC84

Accessibility & contrast

On white

2.52

#81B233 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.35

#81B233 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #81B233

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81B233	#FFFFFF	#000000	##000000
##81B233	1.00	2.52	8.35	8.35
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.35	21.00	1.00	1.00
##000000	8.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA51D

Deuteranopia (green-blind)

#B4A23E

Tritanopia (blue-blind)

#85AA99

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #81b233;
/* rgb */ color: rgb(129, 178, 51);
/* oklch */ color: oklch(70.4% 0.162 128.4);

Tailwind

colors: {
  custom: {
    50: '#a9c973',
    500: '#81b233',
    950: '#000000',
  },
}

SCSS

$custom: #81b233;
$custom-light: #a9c973;
$custom-dark: #000000;

JSON

{
  "hex": "#81b233",
  "rgb": {
    "r": 129,
    "g": 178,
    "b": 51
  },
  "hsl": {
    "h": 83.15,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.70428,
    "c": 0.16224,
    "h": 128.4
  },
  "luminance": 0.36747
}

Semantic roles & 50–950 ramp

primary

#81B233

secondary

#987CC5

accent

#49DF83

background

#FAFCF7

surface

#F4F8ED

border

#CED1C8

text

#101308

muted

#7F827B

Preview Lab

Preview with #81B233

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

Preview Lab → · Contrast checker → · Palette generator →