#1F9937#1F9937

#1F9937 is a mid, vivid green. Relative luminance 0.234; OKLCH L 59.8% C 0.172 H 145.7°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F9937
RGB	rgb(31, 153, 55)
HSL	hsl(132, 66%, 36%)
HSV	hsv(132, 80%, 60%)
CMYK	cmyk(79.7%, 0%, 64.1%, 40%)
CIE-LAB	lab(55.43, -52.64, 41.34)
CIE-LCH	lch(55.43, 66.93, 141.86°)
OKLab	oklab(59.84% -0.1418 0.0966)
OKLCH	oklch(59.84% 0.172 145.7)
XYZ	xyz(12.6450, 23.3481, 7.4539)
Luminance	0.2335 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F9937 #991F81

analogous

#44991F #1F9937 #1F9974

triadic

#1F9937 #371F99 #99371F

tetradic

#1F9937 #1F4499 #991F81 #99741F

square

#1F9937 #1F4499 #991F81 #99741F

split-complementary

#1F9937 #741F99 #991F44

monochromatic

#0A3312 #156625 #1F9937 #29CC49 #56DD70

Accessibility & contrast

On white

3.70

#1F9937 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#1F9937 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F9937

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F9937	#FFFFFF	#000000	##000000
##1F9937	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9B8A2C

Deuteranopia (green-blind)

#8E8140

Tritanopia (blue-blind)

#009584

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1f9937;
/* rgb */ color: rgb(31, 153, 55);
/* oklch */ color: oklch(59.8% 0.172 145.7);

Tailwind

colors: {
  custom: {
    50: '#71b872',
    500: '#1f9937',
    950: '#000000',
  },
}

SCSS

$custom: #1f9937;
$custom-light: #71b872;
$custom-dark: #000000;

JSON

{
  "hex": "#1f9937",
  "rgb": {
    "r": 31,
    "g": 153,
    "b": 55
  },
  "hsl": {
    "h": 131.803,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.59837,
    "c": 0.17159,
    "h": 145.7
  },
  "luminance": 0.2335
}

Semantic roles & 50–950 ramp

primary

#1F9937

secondary

#C054AB

accent

#3FC8E9

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091108

muted

#7B807B

Preview Lab

Preview with #1F9937

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

Preview Lab → · Contrast checker → · Palette generator →