#538B1F#538B1F

#538B1F is a mid, vivid yellow-green. Relative luminance 0.204; OKLCH L 57.6% C 0.149 H 133.5°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#538B1F
RGB	rgb(83, 139, 31)
HSL	hsl(91, 64%, 33%)
HSV	hsv(91, 78%, 55%)
CMYK	cmyk(40.3%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(52.29, -36.42, 48.35)
CIE-LCH	lch(52.29, 60.54, 126.99°)
OKLab	oklab(57.65% -0.1024 0.1078)
OKLCH	oklch(57.65% 0.149 133.5)
XYZ	xyz(13.0470, 20.4025, 4.5467)
Luminance	0.2040 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538B1F #571F8B

analogous

#898B1F #538B1F #1F8B21

triadic

#538B1F #1F538B #8B1F53

tetradic

#538B1F #1F898B #571F8B #8B211F

square

#538B1F #1F898B #571F8B #8B211F

split-complementary

#538B1F #211F8B #8B1F89

monochromatic

#172709 #355914 #538B1F #71BD2A #90D74D

Accessibility & contrast

On white

4.13

#538B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#538B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538B1F

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538B1F	#FFFFFF	#000000	##000000
##538B1F	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918005

Deuteranopia (green-blind)

#897B2A

Tritanopia (blue-blind)

#538577

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #538b1f;
/* rgb */ color: rgb(83, 139, 31);
/* oklch */ color: oklch(57.6% 0.149 133.5);

Tailwind

colors: {
  custom: {
    50: '#88ad63',
    500: '#538b1f',
    950: '#000000',
  },
}

SCSS

$custom: #538b1f;
$custom-light: #88ad63;
$custom-dark: #000000;

JSON

{
  "hex": "#538b1f",
  "rgb": {
    "r": 83,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 91.111,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.5765,
    "c": 0.14867,
    "h": 133.5
  },
  "luminance": 0.20403
}

Semantic roles & 50–950 ramp

primary

#538B1F

secondary

#854CBA

accent

#41E797

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #538B1F

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

Preview Lab → · Contrast checker → · Palette generator →