#528B21#528B21

#528B21 is a mid, vivid yellow-green. Relative luminance 0.204; OKLCH L 57.6% C 0.148 H 134.0°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#528B21
RGB	rgb(82, 139, 33)
HSL	hsl(92, 62%, 34%)
HSV	hsv(92, 76%, 55%)
CMYK	cmyk(41%, 0%, 76.3%, 45.5%)
CIE-LAB	lab(52.25, -36.66, 47.59)
CIE-LCH	lch(52.25, 60.07, 127.61°)
OKLab	oklab(57.61% -0.1028 0.1065)
OKLCH	oklch(57.61% 0.148 134)
XYZ	xyz(12.9866, 20.3682, 4.6857)
Luminance	0.2037 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#528B21 #5A218B

analogous

#878B21 #528B21 #218B25

triadic

#528B21 #21528B #8B2152

tetradic

#528B21 #21878B #5A218B #8B2521

square

#528B21 #21878B #5A218B #8B2521

split-complementary

#528B21 #25218B #8B2187

monochromatic

#18280A #355A15 #528B21 #6FBC2D #8ED651

Accessibility & contrast

On white

4.14

#528B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#528B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #528B21

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##528B21	#FFFFFF	#000000	##000000
##528B21	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91800B

Deuteranopia (green-blind)

#897B2C

Tritanopia (blue-blind)

#528577

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #528b21;
/* rgb */ color: rgb(82, 139, 33);
/* oklch */ color: oklch(57.6% 0.148 134.0);

Tailwind

colors: {
  custom: {
    50: '#88ad64',
    500: '#528b21',
    950: '#000000',
  },
}

SCSS

$custom: #528b21;
$custom-light: #88ad64;
$custom-dark: #000000;

JSON

{
  "hex": "#528b21",
  "rgb": {
    "r": 82,
    "g": 139,
    "b": 33
  },
  "hsl": {
    "h": 92.264,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.57609,
    "c": 0.14804,
    "h": 134
  },
  "luminance": 0.20369
}

Semantic roles & 50–950 ramp

primary

#528B21

secondary

#884FB9

accent

#43E59A

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #528B21

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

Preview Lab → · Contrast checker → · Palette generator →