#1B9F33#1B9F33

#1B9F33 is a mid, vivid green. Relative luminance 0.253; OKLCH L 61.4% C 0.183 H 145.1°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F33
RGB	rgb(27, 159, 51)
HSL	hsl(131, 71%, 36%)
HSV	hsv(131, 83%, 62%)
CMYK	cmyk(83%, 0%, 67.9%, 37.6%)
CIE-LAB	lab(57.33, -55.56, 45.19)
CIE-LCH	lch(57.33, 71.62, 140.88°)
OKLab	oklab(61.39% -0.1498 0.1044)
OKLCH	oklch(61.39% 0.183 145.1)
XYZ	xyz(13.4467, 25.2666, 7.2996)
Luminance	0.2527 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F33 #9F1B87

analogous

#459F1B #1B9F33 #1B9F75

triadic

#1B9F33 #331B9F #9F331B

tetradic

#1B9F33 #1B459F #9F1B87 #9F751B

square

#1B9F33 #1B459F #9F1B87 #9F751B

split-complementary

#1B9F33 #751B9F #9F1B45

monochromatic

#093611 #126B22 #1B9F33 #24D344 #53E26D

Accessibility & contrast

On white

3.47

#1B9F33 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#1B9F33 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F33

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F33	#FFFFFF	#000000	##000000
##1B9F33	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A29025

Deuteranopia (green-blind)

#94863D

Tritanopia (blue-blind)

#009B89

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f33;
/* rgb */ color: rgb(27, 159, 51);
/* oklch */ color: oklch(61.4% 0.183 145.1);

Tailwind

colors: {
  custom: {
    50: '#72bd70',
    500: '#1b9f33',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f33;
$custom-light: #72bd70;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f33",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 51
  },
  "hsl": {
    "h": 130.909,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61392,
    "c": 0.18255,
    "h": 145.1
  },
  "luminance": 0.25268
}

Semantic roles & 50–950 ramp

primary

#1B9F33

secondary

#C551B0

accent

#3ACDEE

background

#F7FBF6

surface

#EEF7EC

border

#C9D0C7

text

#091208

muted

#7B817B

Preview Lab

Preview with #1B9F33

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

Preview Lab → · Contrast checker → · Palette generator →