#3F7D1B#3F7D1B

#3F7D1B is a mid, vivid yellow-green. Relative luminance 0.158; OKLCH L 52.8% C 0.144 H 136.7°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F7D1B
RGB	rgb(63, 125, 27)
HSL	hsl(98, 64%, 30%)
HSV	hsv(98, 78%, 49%)
CMYK	cmyk(49.6%, 0%, 78.4%, 51%)
CIE-LAB	lab(46.71, -37.62, 44.04)
CIE-LCH	lch(46.71, 57.92, 130.50°)
OKLab	oklab(52.81% -0.1045 0.0985)
OKLCH	oklch(52.81% 0.144 136.7)
XYZ	xyz(9.5811, 15.8025, 3.5820)
Luminance	0.1580 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7D1B #591B7D

analogous

#707D1B #3F7D1B #1B7D28

triadic

#3F7D1B #1B3F7D #7D1B3F

tetradic

#3F7D1B #1B707D #591B7D #7D281B

square

#3F7D1B #1B707D #591B7D #7D281B

split-complementary

#3F7D1B #281B7D #7D1B70

monochromatic

#0D1905 #264B10 #3F7D1B #58AF26 #75D53D

Accessibility & contrast

On white

5.05

#3F7D1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3F7D1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F7D1B

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7D1B	#FFFFFF	#000000	##FFFFFF
##3F7D1B	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817205

Deuteranopia (green-blind)

#796D25

Tritanopia (blue-blind)

#3C786A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f7d1b;
/* rgb */ color: rgb(63, 125, 27);
/* oklch */ color: oklch(52.8% 0.144 136.7);

Tailwind

colors: {
  custom: {
    50: '#7ba35f',
    500: '#3f7d1b',
    950: '#000000',
  },
}

SCSS

$custom: #3f7d1b;
$custom-light: #7ba35f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7d1b",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 27
  },
  "hsl": {
    "h": 97.959,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.52812,
    "c": 0.14363,
    "h": 136.7
  },
  "luminance": 0.15803
}

Semantic roles & 50–950 ramp

primary

#3F7D1B

secondary

#8843B1

accent

#40E7AA

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F7D1B

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

Preview Lab → · Contrast checker → · Palette generator →