#1FA01B#1FA01B

#1FA01B is a mid, vivid green. Relative luminance 0.255; OKLCH L 61.6% C 0.196 H 142.5°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#1FA01B
RGB	rgb(31, 160, 27)
HSL	hsl(118, 71%, 37%)
HSV	hsv(118, 83%, 63%)
CMYK	cmyk(80.6%, 0%, 83.1%, 37.3%)
CIE-LAB	lab(57.57, -57.31, 54.01)
CIE-LCH	lch(57.57, 78.75, 136.70°)
OKLab	oklab(61.55% -0.1557 0.1196)
OKLCH	oklch(61.55% 0.196 142.5)
XYZ	xyz(13.3329, 25.5104, 5.2580)
Luminance	0.2551 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FA01B #9C1BA0

analogous

#62A01B #1FA01B #1BA059

triadic

#1FA01B #1B1FA0 #A01B1F

tetradic

#1FA01B #1B62A0 #9C1BA0 #A0591B

square

#1FA01B #1B62A0 #9C1BA0 #A0591B

split-complementary

#1FA01B #591BA0 #A01B62

monochromatic

#0B3709 #156C12 #1FA01B #29D424 #58E253

Accessibility & contrast

On white

3.44

#1FA01B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#1FA01B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1FA01B

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FA01B	#FFFFFF	#000000	##000000
##1FA01B	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49000

Deuteranopia (green-blind)

#96872C

Tritanopia (blue-blind)

#009B88

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1fa01b;
/* rgb */ color: rgb(31, 160, 27);
/* oklch */ color: oklch(61.6% 0.196 142.5);

Tailwind

colors: {
  custom: {
    50: '#74bd64',
    500: '#1fa01b',
    950: '#000000',
  },
}

SCSS

$custom: #1fa01b;
$custom-light: #74bd64;
$custom-dark: #000000;

JSON

{
  "hex": "#1fa01b",
  "rgb": {
    "r": 31,
    "g": 160,
    "b": 27
  },
  "hsl": {
    "h": 118.195,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.61554,
    "c": 0.19637,
    "h": 142.5
  },
  "luminance": 0.25512
}

Semantic roles & 50–950 ramp

primary

#1FA01B

secondary

#C152C5

accent

#3AEEE8

background

#F7FBF6

surface

#EEF7EB

border

#C9D0C6

text

#0A1206

muted

#7C817A

Preview Lab

Preview with #1FA01B

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

Preview Lab → · Contrast checker → · Palette generator →