#5BCA21#5BCA21

#5BCA21 is a light, highly saturated yellow-green. Relative luminance 0.446; OKLCH L 74.5% C 0.219 H 138.0°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#5BCA21
RGB	rgb(91, 202, 33)
HSL	hsl(99, 72%, 46%)
HSV	hsv(99, 84%, 79%)
CMYK	cmyk(55%, 0%, 83.7%, 20.8%)
CIE-LAB	lab(72.61, -58.58, 66.68)
CIE-LCH	lch(72.61, 88.75, 131.30°)
OKLab	oklab(74.46% -0.1623 0.1464)
OKLCH	oklch(74.46% 0.219 138)
XYZ	xyz(25.7085, 44.5729, 8.6872)
Luminance	0.4457 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BCA21 #9021CA

analogous

#AFCA21 #5BCA21 #21CA3B

triadic

#5BCA21 #215BCA #CA215B

tetradic

#5BCA21 #21AFCA #9021CA #CA3B21

square

#5BCA21 #21AFCA #9021CA #CA3B21

split-complementary

#5BCA21 #3B21CA #CA21AF

monochromatic

#2C6110 #439518 #5BCA21 #7CE147 #A1EA7C

Accessibility & contrast

On white

2.12

#5BCA21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.91

#5BCA21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BCA21

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BCA21	#FFFFFF	#000000	##000000
##5BCA21	1.00	2.12	9.91	9.91
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.91	21.00	1.00	1.00
##000000	9.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1B800

Deuteranopia (green-blind)

#C3AF37

Tritanopia (blue-blind)

#51C3AC

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #5bca21;
/* rgb */ color: rgb(91, 202, 33);
/* oklch */ color: oklch(74.5% 0.219 138.0);

Tailwind

colors: {
  custom: {
    50: '#95db6d',
    500: '#5bca21',
    950: '#000000',
  },
}

SCSS

$custom: #5bca21;
$custom-light: #95db6d;
$custom-dark: #000000;

JSON

{
  "hex": "#5bca21",
  "rgb": {
    "r": 91,
    "g": 202,
    "b": 33
  },
  "hsl": {
    "h": 99.408,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.74456,
    "c": 0.21857,
    "h": 138
  },
  "luminance": 0.44575
}

Semantic roles & 50–950 ramp

primary

#5BCA21

secondary

#B275D2

accent

#39EFB0

background

#F9FDF7

surface

#F2FBED

border

#CCD4C8

text

#0E1508

muted

#7E837B

Preview Lab

Preview with #5BCA21

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

Preview Lab → · Contrast checker → · Palette generator →