#63B431#63B431

#63B431 is a light, vivid yellow-green. Relative luminance 0.355; OKLCH L 69.2% C 0.181 H 136.1°. Best body text is #000000 at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#63B431
RGB	rgb(99, 180, 49)
HSL	hsl(97, 57%, 45%)
HSV	hsv(97, 73%, 71%)
CMYK	cmyk(45%, 0%, 72.8%, 29.4%)
CIE-LAB	lab(66.15, -47.00, 55.82)
CIE-LCH	lch(66.15, 72.97, 130.09°)
OKLab	oklab(69.25% -0.1308 0.1258)
OKLCH	oklch(69.25% 0.181 136.1)
XYZ	xyz(22.0206, 35.5156, 8.6000)
Luminance	0.3552 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B431 #8231B4

analogous

#A5B431 #63B431 #31B440

triadic

#63B431 #3163B4 #B43163

tetradic

#63B431 #31A5B4 #8231B4 #B44031

square

#63B431 #31A5B4 #8231B4 #B44031

split-complementary

#63B431 #4031B4 #B431A5

monochromatic

#2E5417 #498424 #63B431 #82D052 #A5DD82

Accessibility & contrast

On white

2.59

#63B431 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.10

#63B431 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B431

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B431	#FFFFFF	#000000	##000000
##63B431	1.00	2.59	8.10	8.10
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.10	21.00	1.00	1.00
##000000	8.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA519

Deuteranopia (green-blind)

#B09E3E

Tritanopia (blue-blind)

#60AD9B

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63b431;
/* rgb */ color: rgb(99, 180, 49);
/* oklch */ color: oklch(69.2% 0.181 136.1);

Tailwind

colors: {
  custom: {
    50: '#96cb72',
    500: '#63b431',
    950: '#000000',
  },
}

SCSS

$custom: #63b431;
$custom-light: #96cb72;
$custom-dark: #000000;

JSON

{
  "hex": "#63b431",
  "rgb": {
    "r": 99,
    "g": 180,
    "b": 49
  },
  "hsl": {
    "h": 97.099,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.69247,
    "c": 0.18146,
    "h": 136.1
  },
  "luminance": 0.35517
}

Semantic roles & 50–950 ramp

primary

#63B431

secondary

#A97BC6

accent

#47E0A6

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B431

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

Preview Lab → · Contrast checker → · Palette generator →