#5BBB21#5BBB21

#5BBB21 is a light, highly saturated yellow-green. Relative luminance 0.379; OKLCH L 70.6% C 0.202 H 137.0°. Best body text is #000000 at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#5BBB21
RGB	rgb(91, 187, 33)
HSL	hsl(97, 70%, 43%)
HSV	hsv(97, 82%, 73%)
CMYK	cmyk(51.3%, 0%, 82.4%, 26.7%)
CIE-LAB	lab(67.93, -53.10, 62.46)
CIE-LCH	lch(67.93, 81.98, 130.37°)
OKLab	oklab(70.59% -0.1476 0.1375)
OKLCH	oklch(70.59% 0.202 137)
XYZ	xyz(22.3585, 37.8729, 7.5706)
Luminance	0.3787 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBB21 #8121BB

analogous

#A8BB21 #5BBB21 #21BB34

triadic

#5BBB21 #215BBB #BB215B

tetradic

#5BBB21 #21A8BB #8121BB #BB3421

square

#5BBB21 #21A8BB #8121BB #BB3421

split-complementary

#5BBB21 #3421BB #BB21A8

monochromatic

#28530F #428718 #5BBB21 #79DD3D #9DE671

Accessibility & contrast

On white

2.45

#5BBB21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.57

#5BBB21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBB21

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBB21	#FFFFFF	#000000	##000000
##5BBB21	1.00	2.45	8.57	8.57
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.57	21.00	1.00	1.00
##000000	8.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#B5A334

Tritanopia (blue-blind)

#55B49F

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #5bbb21;
/* rgb */ color: rgb(91, 187, 33);
/* oklch */ color: oklch(70.6% 0.202 137.0);

Tailwind

colors: {
  custom: {
    50: '#93d06b',
    500: '#5bbb21',
    950: '#000000',
  },
}

SCSS

$custom: #5bbb21;
$custom-light: #93d06b;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbb21",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 33
  },
  "hsl": {
    "h": 97.403,
    "s": 70,
    "l": 43.137
  },
  "oklch": {
    "l": 0.70593,
    "c": 0.20175,
    "h": 137
  },
  "luminance": 0.37875
}

Semantic roles & 50–950 ramp

primary

#5BBB21

secondary

#A86BCC

accent

#3BEDAA

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0E1407

muted

#7E827A

Preview Lab

Preview with #5BBB21

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

Preview Lab → · Contrast checker → · Palette generator →