#1F9940#1F9940

#1F9940 is a mid, vivid green. Relative luminance 0.234; OKLCH L 59.9% C 0.164 H 147.4°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F9940
RGB	rgb(31, 153, 64)
HSL	hsl(136, 66%, 36%)
HSV	hsv(136, 80%, 60%)
CMYK	cmyk(79.7%, 0%, 58.2%, 40%)
CIE-LAB	lab(55.53, -51.47, 37.19)
CIE-LCH	lch(55.53, 63.50, 144.15°)
OKLab	oklab(59.95% -0.1384 0.0884)
OKLCH	oklch(59.95% 0.164 147.4)
XYZ	xyz(12.8807, 23.4424, 8.6955)
Luminance	0.2344 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F9940 #991F78

analogous

#3B991F #1F9940 #1F997D

triadic

#1F9940 #401F99 #99401F

tetradic

#1F9940 #1F3B99 #991F78 #997D1F

square

#1F9940 #1F3B99 #991F78 #997D1F

split-complementary

#1F9940 #7D1F99 #991F3B

monochromatic

#0A3315 #15662B #1F9940 #29CC55 #56DD7A

Accessibility & contrast

On white

3.69

#1F9940 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#1F9940 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F9940

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F9940	#FFFFFF	#000000	##000000
##1F9940	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9B8B37

Deuteranopia (green-blind)

#8D8147

Tritanopia (blue-blind)

#009685

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1f9940;
/* rgb */ color: rgb(31, 153, 64);
/* oklch */ color: oklch(59.9% 0.164 147.4);

Tailwind

colors: {
  custom: {
    50: '#71b877',
    500: '#1f9940',
    950: '#000000',
  },
}

SCSS

$custom: #1f9940;
$custom-light: #71b877;
$custom-dark: #000000;

JSON

{
  "hex": "#1f9940",
  "rgb": {
    "r": 31,
    "g": 153,
    "b": 64
  },
  "hsl": {
    "h": 136.23,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.59948,
    "c": 0.16423,
    "h": 147.4
  },
  "luminance": 0.23444
}

Semantic roles & 50–950 ramp

primary

#1F9940

secondary

#C054A3

accent

#3FBBE9

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091109

muted

#7B807B

Preview Lab

Preview with #1F9940

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

Preview Lab → · Contrast checker → · Palette generator →