#1B9521#1B9521

#1B9521 is a mid, vivid green. Relative luminance 0.218; OKLCH L 58.5% C 0.183 H 143.3°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B9521
RGB	rgb(27, 149, 33)
HSL	hsl(123, 69%, 35%)
HSV	hsv(123, 82%, 58%)
CMYK	cmyk(81.9%, 0%, 77.9%, 41.6%)
CIE-LAB	lab(53.85, -53.98, 48.58)
CIE-LCH	lch(53.85, 72.63, 138.01°)
OKLab	oklab(58.45% -0.1463 0.1092)
OKLCH	oklch(58.45% 0.183 143.3)
XYZ	xyz(11.4732, 21.8363, 5.0487)
Luminance	0.2184 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9521 #951B8F

analogous

#52951B #1B9521 #1B955E

triadic

#1B9521 #211B95 #95211B

tetradic

#1B9521 #1B5295 #951B8F #955E1B

square

#1B9521 #1B5295 #951B8F #955E1B

split-complementary

#1B9521 #5E1B95 #951B52

monochromatic

#082D0A #126116 #1B9521 #24C92C #4CDF53

Accessibility & contrast

On white

3.91

#1B9521 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#1B9521 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9521

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9521	#FFFFFF	#000000	##000000
##1B9521	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#988605

Deuteranopia (green-blind)

#8B7D2E

Tritanopia (blue-blind)

#00917F

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1b9521;
/* rgb */ color: rgb(27, 149, 33);
/* oklch */ color: oklch(58.5% 0.183 143.3);

Tailwind

colors: {
  custom: {
    50: '#70b565',
    500: '#1b9521',
    950: '#000000',
  },
}

SCSS

$custom: #1b9521;
$custom-light: #70b565;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9521",
  "rgb": {
    "r": 27,
    "g": 149,
    "b": 33
  },
  "hsl": {
    "h": 122.951,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.58454,
    "c": 0.18251,
    "h": 143.3
  },
  "luminance": 0.21838
}

Semantic roles & 50–950 ramp

primary

#1B9521

secondary

#C14BBB

accent

#3CE3EC

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091106

muted

#7B807A

Preview Lab

Preview with #1B9521

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

Preview Lab → · Contrast checker → · Palette generator →