#5B9E1B#5B9E1B

#5B9E1B is a light, vivid yellow-green. Relative luminance 0.268; OKLCH L 63.0% C 0.170 H 133.9°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#5B9E1B
RGB	rgb(91, 158, 27)
HSL	hsl(91, 71%, 36%)
HSV	hsv(91, 83%, 62%)
CMYK	cmyk(42.4%, 0%, 82.9%, 38%)
CIE-LAB	lab(58.75, -41.93, 55.76)
CIE-LCH	lch(58.75, 69.77, 126.94°)
OKLab	oklab(63.04% -0.118 0.1225)
OKLCH	oklch(63.04% 0.17 133.9)
XYZ	xyz(16.7388, 26.7561, 5.3192)
Luminance	0.2676 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9E1B #5E1B9E

analogous

#9D9E1B #5B9E1B #1B9E1D

triadic

#5B9E1B #1B5B9E #9E1B5B

tetradic

#5B9E1B #1B9D9E #5E1B9E #9E1D1B

square

#5B9E1B #1B9D9E #5E1B9E #9E1D1B

split-complementary

#5B9E1B #1D1B9E #9E1B9D

monochromatic

#1F3509 #3D6A12 #5B9E1B #79D224 #98E152

Accessibility & contrast

On white

3.31

#5B9E1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.35

#5B9E1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B9E1B

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9E1B	#FFFFFF	#000000	##000000
##5B9E1B	1.00	3.31	6.35	6.35
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.35	21.00	1.00	1.00
##000000	6.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49100

Deuteranopia (green-blind)

#9C8B2B

Tritanopia (blue-blind)

#5A9786

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b9e1b;
/* rgb */ color: rgb(91, 158, 27);
/* oklch */ color: oklch(63.0% 0.170 133.9);

Tailwind

colors: {
  custom: {
    50: '#90bb65',
    500: '#5b9e1b',
    950: '#000000',
  },
}

SCSS

$custom: #5b9e1b;
$custom-light: #90bb65;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9e1b",
  "rgb": {
    "r": 91,
    "g": 158,
    "b": 27
  },
  "hsl": {
    "h": 90.687,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.6304,
    "c": 0.17012,
    "h": 133.9
  },
  "luminance": 0.26757
}

Semantic roles & 50–950 ramp

primary

#5B9E1B

secondary

#8C51C4

accent

#3AEE96

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0D1206

muted

#7E817A

Preview Lab

Preview with #5B9E1B

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

Preview Lab → · Contrast checker → · Palette generator →