#1FB451#1FB451

#1FB451 is a light, vivid green. Relative luminance 0.335; OKLCH L 67.5% C 0.183 H 148.7°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#1FB451
RGB	rgb(31, 180, 81)
HSL	hsl(140, 71%, 41%)
HSV	hsv(140, 83%, 71%)
CMYK	cmyk(82.8%, 0%, 55%, 29.4%)
CIE-LAB	lab(64.58, -58.26, 39.74)
CIE-LCH	lch(64.58, 70.52, 145.70°)
OKLab	oklab(67.53% -0.1564 0.0952)
OKLCH	oklch(67.53% 0.183 148.7)
XYZ	xyz(18.3700, 33.5256, 13.2859)
Luminance	0.3353 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1FB451 #B41F82

analogous

#38B41F #1FB451 #1FB49C

triadic

#1FB451 #511FB4 #B4511F

tetradic

#1FB451 #1F38B4 #B41F82 #B49C1F

square

#1FB451 #1F38B4 #B41F82 #B49C1F

split-complementary

#1FB451 #9C1FB4 #B41F38

monochromatic

#0D4C22 #16803A #1FB451 #34DC6C #68E592

Accessibility & contrast

On white

2.73

#1FB451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#1FB451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #1FB451

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1FB451	#FFFFFF	#000000	##000000
##1FB451	1.00	2.73	7.71	7.71
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A348

Deuteranopia (green-blind)

#A69859

Tritanopia (blue-blind)

#00B09E

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #1fb451;
/* rgb */ color: rgb(31, 180, 81);
/* oklch */ color: oklch(67.5% 0.183 148.7);

Tailwind

colors: {
  custom: {
    50: '#77cc84',
    500: '#1fb451',
    950: '#000000',
  },
}

SCSS

$custom: #1fb451;
$custom-light: #77cc84;
$custom-dark: #000000;

JSON

{
  "hex": "#1fb451",
  "rgb": {
    "r": 31,
    "g": 180,
    "b": 81
  },
  "hsl": {
    "h": 140.134,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.67528,
    "c": 0.18307,
    "h": 148.7
  },
  "luminance": 0.33528
}

Semantic roles & 50–950 ramp

primary

#1FB451

secondary

#CB64A8

accent

#3AB1ED

background

#F8FCF8

surface

#EFF9EF

border

#CAD2CA

text

#0A130B

muted

#7C827C

Preview Lab

Preview with #1FB451

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

Preview Lab → · Contrast checker → · Palette generator →