#427F1F#427F1F

#427F1F is a mid, vivid yellow-green. Relative luminance 0.164; OKLCH L 53.5% C 0.142 H 136.6°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#427F1F
RGB	rgb(66, 127, 31)
HSL	hsl(98, 61%, 31%)
HSV	hsv(98, 76%, 50%)
CMYK	cmyk(48%, 0%, 75.6%, 50.2%)
CIE-LAB	lab(47.54, -37.19, 43.42)
CIE-LCH	lch(47.54, 57.16, 130.58°)
OKLab	oklab(53.54% -0.1033 0.0977)
OKLCH	oklch(53.54% 0.142 136.6)
XYZ	xyz(10.0832, 16.4353, 3.9371)
Luminance	0.1644 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427F1F #5C1F7F

analogous

#727F1F #427F1F #1F7F2C

triadic

#427F1F #1F427F #7F1F42

tetradic

#427F1F #1F727F #5C1F7F #7F2C1F

square

#427F1F #1F727F #5C1F7F #7F2C1F

split-complementary

#427F1F #2C1F7F #7F1F72

monochromatic

#0F1D07 #284E13 #427F1F #5CB02B #79D246

Accessibility & contrast

On white

4.90

#427F1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#427F1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427F1F

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427F1F	#FFFFFF	#000000	##FFFFFF
##427F1F	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#84740D

Deuteranopia (green-blind)

#7B6F29

Tritanopia (blue-blind)

#3F7A6C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #427f1f;
/* rgb */ color: rgb(66, 127, 31);
/* oklch */ color: oklch(53.5% 0.142 136.6);

Tailwind

colors: {
  custom: {
    50: '#7ca562',
    500: '#427f1f',
    950: '#000000',
  },
}

SCSS

$custom: #427f1f;
$custom-light: #7ca562;
$custom-dark: #000000;

JSON

{
  "hex": "#427f1f",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 31
  },
  "hsl": {
    "h": 98.125,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53536,
    "c": 0.14222,
    "h": 136.6
  },
  "luminance": 0.16436
}

Semantic roles & 50–950 ramp

primary

#427F1F

secondary

#8B48B2

accent

#44E4AA

background

#F7FAF6

surface

#EEF4EB

border

#C9CEC6

text

#0A0F05

muted

#7C7F7A

Preview Lab

Preview with #427F1F

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

Preview Lab → · Contrast checker → · Palette generator →