#A1B728#A1B728

#A1B728 is a light, vivid yellow. Relative luminance 0.416; OKLCH L 73.8% C 0.160 H 118.4°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#A1B728
RGB	rgb(161, 183, 40)
HSL	hsl(69, 64%, 44%)
HSV	hsv(69, 78%, 72%)
CMYK	cmyk(12%, 0%, 78.1%, 28.2%)
CIE-LAB	lab(70.59, -25.35, 64.33)
CIE-LCH	lch(70.59, 69.14, 111.51°)
OKLab	oklab(73.78% -0.0762 0.1408)
OKLCH	oklch(73.78% 0.16 118.4)
XYZ	xyz(32.0152, 41.5975, 8.3496)
Luminance	0.4160 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1B728 #3E28B7

analogous

#B78528 #A1B728 #59B728

triadic

#A1B728 #28A1B7 #B728A1

tetradic

#A1B728 #28B785 #3E28B7 #B72859

square

#A1B728 #28B785 #3E28B7 #B72859

split-complementary

#A1B728 #2859B7 #8528B7

monochromatic

#495312 #75851D #A1B728 #C0D646 #D1E178

Accessibility & contrast

On white

2.25

#A1B728 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#A1B728 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A1B728

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1B728	#FFFFFF	#000000	##000000
##A1B728	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD00

Deuteranopia (green-blind)

#C1AD36

Tritanopia (blue-blind)

#ABAD9D

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #a1b728;
/* rgb */ color: rgb(161, 183, 40);
/* oklch */ color: oklch(73.8% 0.160 118.4);

Tailwind

colors: {
  custom: {
    50: '#c1cc6f',
    500: '#a1b728',
    950: '#000000',
  },
}

SCSS

$custom: #a1b728;
$custom-light: #c1cc6f;
$custom-dark: #000000;

JSON

{
  "hex": "#a1b728",
  "rgb": {
    "r": 161,
    "g": 183,
    "b": 40
  },
  "hsl": {
    "h": 69.231,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.73784,
    "c": 0.16013,
    "h": 118.4
  },
  "luminance": 0.41597
}

Semantic roles & 50–950 ramp

primary

#A1B728

secondary

#7F72C9

accent

#41E75A

background

#FCFCF7

surface

#F8F8ED

border

#D1D1C8

text

#131308

muted

#82827B

Preview Lab

Preview with #A1B728

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

Preview Lab → · Contrast checker → · Palette generator →