#1F971B#1F971B

#1F971B is a mid, vivid green. Relative luminance 0.225; OKLCH L 59.0% C 0.187 H 142.5°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F971B
RGB	rgb(31, 151, 27)
HSL	hsl(118, 70%, 35%)
HSV	hsv(118, 82%, 59%)
CMYK	cmyk(79.5%, 0%, 82.1%, 40.8%)
CIE-LAB	lab(54.56, -54.49, 51.21)
CIE-LCH	lch(54.56, 74.77, 136.78°)
OKLab	oklab(59.05% -0.1481 0.1138)
OKLCH	oklch(59.05% 0.187 142.5)
XYZ	xyz(11.8288, 22.5022, 4.7567)
Luminance	0.2250 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F971B #931B97

analogous

#5D971B #1F971B #1B9755

triadic

#1F971B #1B1F97 #971B1F

tetradic

#1F971B #1B5D97 #931B97 #97551B

square

#1F971B #1B5D97 #931B97 #97551B

split-complementary

#1F971B #551B97 #971B5D

monochromatic

#0A2F08 #146312 #1F971B #2ACB24 #52DF4D

Accessibility & contrast

On white

3.82

#1F971B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#1F971B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F971B

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F971B	#FFFFFF	#000000	##000000
##1F971B	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9B8800

Deuteranopia (green-blind)

#8E7F2B

Tritanopia (blue-blind)

#009280

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #1f971b;
/* rgb */ color: rgb(31, 151, 27);
/* oklch */ color: oklch(59.0% 0.187 142.5);

Tailwind

colors: {
  custom: {
    50: '#72b763',
    500: '#1f971b',
    950: '#000000',
  },
}

SCSS

$custom: #1f971b;
$custom-light: #72b763;
$custom-dark: #000000;

JSON

{
  "hex": "#1f971b",
  "rgb": {
    "r": 31,
    "g": 151,
    "b": 27
  },
  "hsl": {
    "h": 118.065,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.59046,
    "c": 0.18673,
    "h": 142.5
  },
  "luminance": 0.22504
}

Semantic roles & 50–950 ramp

primary

#1F971B

secondary

#BE4CC1

accent

#3BECE7

background

#F7FBF6

surface

#EEF6EB

border

#C9D0C6

text

#091106

muted

#7B807A

Preview Lab

Preview with #1F971B

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

Preview Lab → · Contrast checker → · Palette generator →