#21BC57#21BC57

#21BC57 is a light, vivid green. Relative luminance 0.370; OKLCH L 69.8% C 0.187 H 149.1°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#21BC57
RGB	rgb(33, 188, 87)
HSL	hsl(141, 70%, 43%)
HSV	hsv(141, 82%, 74%)
CMYK	cmyk(82.4%, 0%, 53.7%, 26.3%)
CIE-LAB	lab(67.26, -59.86, 40.07)
CIE-LCH	lch(67.26, 72.03, 146.20°)
OKLab	oklab(69.78% -0.1606 0.0963)
OKLCH	oklch(69.78% 0.187 149.1)
XYZ	xyz(20.3290, 36.9754, 15.0805)
Luminance	0.3698 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21BC57 #BC2186

analogous

#38BC21 #21BC57 #21BCA4

triadic

#21BC57 #5721BC #BC5721

tetradic

#21BC57 #2138BC #BC2186 #BCA421

square

#21BC57 #2138BC #BC2186 #BCA421

split-complementary

#21BC57 #A421BC #BC2138

monochromatic

#0F5427 #18883F #21BC57 #3DDD75 #71E69A

Accessibility & contrast

On white

2.50

#21BC57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#21BC57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21BC57

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21BC57	#FFFFFF	#000000	##000000
##21BC57	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEAB4E

Deuteranopia (green-blind)

#AD9F5F

Tritanopia (blue-blind)

#00B8A5

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #21bc57;
/* rgb */ color: rgb(33, 188, 87);
/* oklch */ color: oklch(69.8% 0.187 149.1);

Tailwind

colors: {
  custom: {
    50: '#79d189',
    500: '#21bc57',
    950: '#000000',
  },
}

SCSS

$custom: #21bc57;
$custom-light: #79d189;
$custom-dark: #000000;

JSON

{
  "hex": "#21bc57",
  "rgb": {
    "r": 33,
    "g": 188,
    "b": 87
  },
  "hsl": {
    "h": 140.903,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.69778,
    "c": 0.18728,
    "h": 149.1
  },
  "luminance": 0.36978
}

Semantic roles & 50–950 ramp

primary

#21BC57

secondary

#CD6CAB

accent

#3BAFED

background

#F8FDF8

surface

#EFFAF0

border

#CAD3CB

text

#0B140C

muted

#7C837D

Preview Lab

Preview with #21BC57

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

Preview Lab → · Contrast checker → · Palette generator →