#63B728#63B728

#63B728 is a light, vivid yellow-green. Relative luminance 0.367; OKLCH L 70.0% C 0.190 H 135.7°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#63B728
RGB	rgb(99, 183, 40)
HSL	hsl(95, 64%, 44%)
HSV	hsv(95, 78%, 72%)
CMYK	cmyk(45.9%, 0%, 78.1%, 28.2%)
CIE-LAB	lab(67.03, -48.76, 59.73)
CIE-LCH	lch(67.03, 77.11, 129.23°)
OKLab	oklab(69.95% -0.1361 0.1327)
OKLCH	oklch(69.95% 0.19 135.7)
XYZ	xyz(22.4615, 36.6714, 7.9018)
Luminance	0.3667 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B728 #7C28B7

analogous

#AAB728 #63B728 #28B734

triadic

#63B728 #2863B7 #B72863

tetradic

#63B728 #28AAB7 #7C28B7 #B73428

square

#63B728 #28AAB7 #7C28B7 #B73428

split-complementary

#63B728 #3428B7 #B728AA

monochromatic

#2D5312 #48851D #63B728 #81D646 #A3E178

Accessibility & contrast

On white

2.52

#63B728 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#63B728 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B728

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B728	#FFFFFF	#000000	##000000
##63B728	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA700

Deuteranopia (green-blind)

#B3A138

Tritanopia (blue-blind)

#60B09C

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #63b728;
/* rgb */ color: rgb(99, 183, 40);
/* oklch */ color: oklch(70.0% 0.190 135.7);

Tailwind

colors: {
  custom: {
    50: '#97cd6e',
    500: '#63b728',
    950: '#000000',
  },
}

SCSS

$custom: #63b728;
$custom-light: #97cd6e;
$custom-dark: #000000;

JSON

{
  "hex": "#63b728",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 40
  },
  "hsl": {
    "h": 95.245,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.69954,
    "c": 0.19007,
    "h": 135.7
  },
  "luminance": 0.36673
}

Semantic roles & 50–950 ramp

primary

#63B728

secondary

#A572C9

accent

#41E7A2

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #63B728

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

Preview Lab → · Contrast checker → · Palette generator →