#51B550#51B550

#51B550 is a light, vivid green. Relative luminance 0.354; OKLCH L 69.1% C 0.168 H 143.3°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#51B550
RGB	rgb(81, 181, 80)
HSL	hsl(119, 41%, 51%)
HSV	hsv(119, 56%, 71%)
CMYK	cmyk(55.2%, 0%, 55.8%, 29%)
CIE-LAB	lab(66.04, -49.61, 42.24)
CIE-LCH	lch(66.04, 65.15, 139.59°)
OKLab	oklab(69.05% -0.1349 0.1005)
OKLCH	oklch(69.05% 0.168 143.3)
XYZ	xyz(21.3640, 35.3745, 13.2900)
Luminance	0.3538 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B550 #B450B5

analogous

#83B550 #51B550 #50B581

triadic

#51B550 #5051B5 #B55051

tetradic

#51B550 #5083B5 #B450B5 #B58150

square

#51B550 #5083B5 #B450B5 #B58150

split-complementary

#51B550 #8150B5 #B55083

monochromatic

#2A6129 #3C8C3B #51B550 #7CC77B #A7D9A6

Accessibility & contrast

On white

2.60

#51B550 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#51B550 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B550

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B550	#FFFFFF	#000000	##000000
##51B550	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A646

Deuteranopia (green-blind)

#AB9D58

Tritanopia (blue-blind)

#41B09E

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #51b550;
/* rgb */ color: rgb(81, 181, 80);
/* oklch */ color: oklch(69.1% 0.168 143.3);

Tailwind

colors: {
  custom: {
    50: '#8bcc84',
    500: '#51b550',
    950: '#000000',
  },
}

SCSS

$custom: #51b550;
$custom-light: #8bcc84;
$custom-dark: #000000;

JSON

{
  "hex": "#51b550",
  "rgb": {
    "r": 81,
    "g": 181,
    "b": 80
  },
  "hsl": {
    "h": 119.406,
    "s": 40.562,
    "l": 51.176
  },
  "oklch": {
    "l": 0.69053,
    "c": 0.16819,
    "h": 143.3
  },
  "luminance": 0.35376
}

Semantic roles & 50–950 ramp

primary

#51B550

secondary

#C69AC7

accent

#57D0CF

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0D130B

muted

#7D827C

Preview Lab

Preview with #51B550

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

Preview Lab → · Contrast checker → · Palette generator →