#5AAA21#5AAA21

#5AAA21 is a light, vivid yellow-green. Relative luminance 0.310; OKLCH L 66.1% C 0.182 H 135.8°. Best body text is #000000 at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#5AAA21
RGB	rgb(90, 170, 33)
HSL	hsl(95, 67%, 40%)
HSV	hsv(95, 81%, 67%)
CMYK	cmyk(47.1%, 0%, 80.6%, 33.3%)
CIE-LAB	lab(62.53, -46.85, 57.50)
CIE-LCH	lch(62.53, 74.17, 129.17°)
OKLab	oklab(66.15% -0.1308 0.1271)
OKLCH	oklch(66.15% 0.182 135.8)
XYZ	xyz(18.8652, 31.0317, 6.4342)
Luminance	0.3103 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5AAA21 #7121AA

analogous

#9FAA21 #5AAA21 #21AA2C

triadic

#5AAA21 #215AAA #AA215A

tetradic

#5AAA21 #219FAA #7121AA #AA2C21

square

#5AAA21 #219FAA #7121AA #AA2C21

split-complementary

#5AAA21 #2C21AA #AA219F

monochromatic

#24430D #3F7717 #5AAA21 #76D731 #98E164

Accessibility & contrast

On white

2.91

#5AAA21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.21

#5AAA21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5AAA21

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5AAA21	#FFFFFF	#000000	##000000
##5AAA21	1.00	2.91	7.21	7.21
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.21	21.00	1.00	1.00
##000000	7.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B09B00

Deuteranopia (green-blind)

#A69531

Tritanopia (blue-blind)

#57A391

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #5aaa21;
/* rgb */ color: rgb(90, 170, 33);
/* oklch */ color: oklch(66.1% 0.182 135.8);

Tailwind

colors: {
  custom: {
    50: '#90c469',
    500: '#5aaa21',
    950: '#000000',
  },
}

SCSS

$custom: #5aaa21;
$custom-light: #90c469;
$custom-dark: #000000;

JSON

{
  "hex": "#5aaa21",
  "rgb": {
    "r": 90,
    "g": 170,
    "b": 33
  },
  "hsl": {
    "h": 95.036,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.66145,
    "c": 0.1824,
    "h": 135.8
  },
  "luminance": 0.31033
}

Semantic roles & 50–950 ramp

primary

#5AAA21

secondary

#9C61C6

accent

#3DEAA2

background

#F9FCF6

surface

#F2F8EB

border

#CCD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #5AAA21

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

Preview Lab → · Contrast checker → · Palette generator →