#63A01B#63A01B

#63A01B is a light, vivid yellow-green. Relative luminance 0.279; OKLCH L 64.0% C 0.168 H 132.2°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#63A01B
RGB	rgb(99, 160, 27)
HSL	hsl(88, 71%, 37%)
HSV	hsv(88, 83%, 63%)
CMYK	cmyk(38.1%, 0%, 83.1%, 37.3%)
CIE-LAB	lab(59.77, -39.94, 56.83)
CIE-LCH	lch(59.77, 69.46, 125.09°)
OKLab	oklab(63.99% -0.1132 0.1246)
OKLCH	oklch(63.99% 0.168 132.2)
XYZ	xyz(17.9140, 27.8726, 5.4728)
Luminance	0.2787 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A01B #581BA0

analogous

#A09B1B #63A01B #20A01B

triadic

#63A01B #1B63A0 #A01B63

tetradic

#63A01B #1BA09B #581BA0 #A01B20

square

#63A01B #1BA09B #581BA0 #A01B20

split-complementary

#63A01B #1B20A0 #9B1BA0

monochromatic

#223709 #436C12 #63A01B #83D424 #A1E253

Accessibility & contrast

On white

3.19

#63A01B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#63A01B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #63A01B

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A01B	#FFFFFF	#000000	##000000
##63A01B	1.00	3.19	6.57	6.57
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79300

Deuteranopia (green-blind)

#9F8E2B

Tritanopia (blue-blind)

#649988

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #63a01b;
/* rgb */ color: rgb(99, 160, 27);
/* oklch */ color: oklch(64.0% 0.168 132.2);

Tailwind

colors: {
  custom: {
    50: '#95bc65',
    500: '#63a01b',
    950: '#000000',
  },
}

SCSS

$custom: #63a01b;
$custom-light: #95bc65;
$custom-dark: #000000;

JSON

{
  "hex": "#63a01b",
  "rgb": {
    "r": 99,
    "g": 160,
    "b": 27
  },
  "hsl": {
    "h": 87.519,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.63986,
    "c": 0.16834,
    "h": 132.2
  },
  "luminance": 0.27873
}

Semantic roles & 50–950 ramp

primary

#63A01B

secondary

#8752C5

accent

#3AEE8C

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1206

muted

#7E817A

Preview Lab

Preview with #63A01B

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

Preview Lab → · Contrast checker → · Palette generator →