#4B901B#4B901B

#4B901B is a mid, vivid yellow-green. Relative luminance 0.215; OKLCH L 58.5% C 0.161 H 135.9°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4B901B
RGB	rgb(75, 144, 27)
HSL	hsl(95, 68%, 34%)
HSV	hsv(95, 81%, 56%)
CMYK	cmyk(47.9%, 0%, 81.3%, 43.5%)
CIE-LAB	lab(53.51, -41.54, 50.70)
CIE-LCH	lch(53.51, 65.54, 129.33°)
OKLab	oklab(58.55% -0.1159 0.1122)
OKLCH	oklch(58.55% 0.161 135.9)
XYZ	xyz(13.0724, 21.5207, 4.5018)
Luminance	0.2152 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B901B #601B90

analogous

#85901B #4B901B #1B9026

triadic

#4B901B #1B4B90 #901B4B

tetradic

#4B901B #1B8590 #601B90 #90261B

square

#4B901B #1B8590 #601B90 #90261B

split-complementary

#4B901B #261B90 #901B85

monochromatic

#152908 #305C11 #4B901B #66C425 #85DD49

Accessibility & contrast

On white

3.96

#4B901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#4B901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B901B

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B901B	#FFFFFF	#000000	##000000
##4B901B	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#958300

Deuteranopia (green-blind)

#8C7E29

Tritanopia (blue-blind)

#488A7B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4b901b;
/* rgb */ color: rgb(75, 144, 27);
/* oklch */ color: oklch(58.5% 0.161 135.9);

Tailwind

colors: {
  custom: {
    50: '#84b162',
    500: '#4b901b',
    950: '#000000',
  },
}

SCSS

$custom: #4b901b;
$custom-light: #84b162;
$custom-dark: #000000;

JSON

{
  "hex": "#4b901b",
  "rgb": {
    "r": 75,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 95.385,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.58546,
    "c": 0.16132,
    "h": 135.9
  },
  "luminance": 0.21522
}

Semantic roles & 50–950 ramp

primary

#4B901B

secondary

#8E48BF

accent

#3DEBA4

background

#F8FAF6

surface

#F0F5EB

border

#CBCFC6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #4B901B

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

Preview Lab → · Contrast checker → · Palette generator →