#21BC5B#21BC5B

#21BC5B is a light, vivid green. Relative luminance 0.370; OKLCH L 69.8% C 0.184 H 149.9°. Best body text is #000000 at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#21BC5B
RGB	rgb(33, 188, 91)
HSL	hsl(142, 70%, 43%)
HSV	hsv(142, 82%, 74%)
CMYK	cmyk(82.4%, 0%, 51.6%, 26.3%)
CIE-LAB	lab(67.31, -59.25, 38.17)
CIE-LCH	lch(67.31, 70.48, 147.21°)
OKLab	oklab(69.84% -0.159 0.0923)
OKLCH	oklch(69.84% 0.184 149.9)
XYZ	xyz(20.4970, 37.0425, 15.9652)
Luminance	0.3705 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21BC5B #BC2182

analogous

#34BC21 #21BC5B #21BCA8

triadic

#21BC5B #5B21BC #BC5B21

tetradic

#21BC5B #2134BC #BC2182 #BCA821

square

#21BC5B #2134BC #BC2182 #BCA821

split-complementary

#21BC5B #A821BC #BC2134

monochromatic

#0F5429 #188842 #21BC5B #3DDD79 #71E69D

Accessibility & contrast

On white

2.50

#21BC5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.41

#21BC5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21BC5B

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21BC5B	#FFFFFF	#000000	##000000
##21BC5B	1.00	2.50	8.41	8.41
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.41	21.00	1.00	1.00
##000000	8.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDAB53

Deuteranopia (green-blind)

#AC9F62

Tritanopia (blue-blind)

#00B9A6

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #21bc5b;
/* rgb */ color: rgb(33, 188, 91);
/* oklch */ color: oklch(69.8% 0.184 149.9);

Tailwind

colors: {
  custom: {
    50: '#79d18b',
    500: '#21bc5b',
    950: '#000000',
  },
}

SCSS

$custom: #21bc5b;
$custom-light: #79d18b;
$custom-dark: #000000;

JSON

{
  "hex": "#21bc5b",
  "rgb": {
    "r": 33,
    "g": 188,
    "b": 91
  },
  "hsl": {
    "h": 142.452,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.69836,
    "c": 0.18383,
    "h": 149.9
  },
  "luminance": 0.37045
}

Semantic roles & 50–950 ramp

primary

#21BC5B

secondary

#CD6CA9

accent

#3BAAED

background

#F8FDF8

surface

#EFFAF0

border

#CAD3CB

text

#0B140C

muted

#7C837D

Preview Lab

Preview with #21BC5B

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

Preview Lab → · Contrast checker → · Palette generator →