#1F9F31#1F9F31

#1F9F31 is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.4% C 0.183 H 144.6°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#1F9F31
RGB	rgb(31, 159, 49)
HSL	hsl(128, 67%, 37%)
HSV	hsv(128, 81%, 62%)
CMYK	cmyk(80.5%, 0%, 69.2%, 37.6%)
CIE-LAB	lab(57.37, -55.28, 46.09)
CIE-LCH	lch(57.37, 71.98, 140.18°)
OKLab	oklab(61.44% -0.1493 0.106)
OKLCH	oklch(61.44% 0.183 144.6)
XYZ	xyz(13.5166, 25.3077, 7.0776)
Luminance	0.2531 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F9F31 #9F1F8D

analogous

#4D9F1F #1F9F31 #1F9F71

triadic

#1F9F31 #311F9F #9F311F

tetradic

#1F9F31 #1F4D9F #9F1F8D #9F711F

square

#1F9F31 #1F4D9F #9F1F8D #9F711F

split-complementary

#1F9F31 #711F9F #9F1F4D

monochromatic

#0B3911 #156C21 #1F9F31 #29D241 #5ADF6C

Accessibility & contrast

On white

3.46

#1F9F31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#1F9F31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F9F31

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F9F31	#FFFFFF	#000000	##000000
##1F9F31	1.00	3.46	6.06	6.06
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A29021

Deuteranopia (green-blind)

#94863C

Tritanopia (blue-blind)

#009B89

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1f9f31;
/* rgb */ color: rgb(31, 159, 49);
/* oklch */ color: oklch(61.4% 0.183 144.6);

Tailwind

colors: {
  custom: {
    50: '#73bd6f',
    500: '#1f9f31',
    950: '#000000',
  },
}

SCSS

$custom: #1f9f31;
$custom-light: #73bd6f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f9f31",
  "rgb": {
    "r": 31,
    "g": 159,
    "b": 49
  },
  "hsl": {
    "h": 128.438,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.61436,
    "c": 0.18308,
    "h": 144.6
  },
  "luminance": 0.25309
}

Semantic roles & 50–950 ramp

primary

#1F9F31

secondary

#C357B4

accent

#3ED2EA

background

#F7FBF6

surface

#EEF7EC

border

#C9D0C7

text

#091208

muted

#7B817B

Preview Lab

Preview with #1F9F31

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

Preview Lab → · Contrast checker → · Palette generator →