#5BB221#5BB221

#5BB221 is a light, vivid yellow-green. Relative luminance 0.342; OKLCH L 68.3% C 0.191 H 136.3°. Best body text is #000000 at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#5BB221
RGB	rgb(91, 178, 33)
HSL	hsl(96, 69%, 41%)
HSV	hsv(96, 81%, 70%)
CMYK	cmyk(48.9%, 0%, 81.5%, 30.2%)
CIE-LAB	lab(65.10, -49.67, 59.88)
CIE-LCH	lch(65.10, 77.80, 129.68°)
OKLab	oklab(68.27% -0.1384 0.1321)
OKLCH	oklch(68.27% 0.191 136.3)
XYZ	xyz(20.5087, 34.1733, 6.9540)
Luminance	0.3417 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB221 #7821B2

analogous

#A4B221 #5BB221 #21B230

triadic

#5BB221 #215BB2 #B2215B

tetradic

#5BB221 #21A4B2 #7821B2 #B23021

square

#5BB221 #21A4B2 #7821B2 #B23021

split-complementary

#5BB221 #3021B2 #B221A4

monochromatic

#264B0E #417E17 #5BB221 #78DA36 #9BE36A

Accessibility & contrast

On white

2.68

#5BB221 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.83

#5BB221 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB221

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB221	#FFFFFF	#000000	##000000
##5BB221	1.00	2.68	7.83	7.83
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.83	21.00	1.00	1.00
##000000	7.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#AD9B33

Tritanopia (blue-blind)

#57AB98

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #5bb221;
/* rgb */ color: rgb(91, 178, 33);
/* oklch */ color: oklch(68.3% 0.191 136.3);

Tailwind

colors: {
  custom: {
    50: '#92ca6a',
    500: '#5bb221',
    950: '#000000',
  },
}

SCSS

$custom: #5bb221;
$custom-light: #92ca6a;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb221",
  "rgb": {
    "r": 91,
    "g": 178,
    "b": 33
  },
  "hsl": {
    "h": 96,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.68266,
    "c": 0.19135,
    "h": 136.3
  },
  "luminance": 0.34175
}

Semantic roles & 50–950 ramp

primary

#5BB221

secondary

#A166C9

accent

#3CECA5

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #5BB221

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

Preview Lab → · Contrast checker → · Palette generator →