#A4E551#A4E551

#A4E551 is a very light, vivid yellow-green. Relative luminance 0.645; OKLCH L 85.0% C 0.189 H 129.9°. Best body text is #000000 at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#A4E551
RGB	rgb(164, 229, 81)
HSL	hsl(86, 74%, 61%)
HSV	hsv(86, 65%, 90%)
CMYK	cmyk(28.4%, 0%, 64.6%, 10.2%)
CIE-LAB	lab(84.24, -42.90, 63.31)
CIE-LCH	lch(84.24, 76.48, 124.12°)
OKLab	oklab(84.96% -0.1212 0.1448)
OKLCH	oklch(84.96% 0.189 129.9)
XYZ	xyz(44.8141, 64.5240, 17.8763)
Luminance	0.6452 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4E551 #9251E5

analogous

#E5DC51 #A4E551 #5AE551

triadic

#A4E551 #51A4E5 #E551A4

tetradic

#A4E551 #51E5DC #9251E5 #E5515A

square

#A4E551 #51E5DC #9251E5 #E5515A

split-complementary

#A4E551 #515AE5 #DC51E5

monochromatic

#66A318 #88D820 #A4E551 #C0ED86 #DCF5BB

Accessibility & contrast

On white

1.51

#A4E551 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.91

#A4E551 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4E551

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4E551	#FFFFFF	#000000	##000000
##A4E551	1.00	1.51	13.91	13.91
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.91	21.00	1.00	1.00
##000000	13.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD53E

Deuteranopia (green-blind)

#E6D15D

Tritanopia (blue-blind)

#A8DCC7

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #a4e551;
/* rgb */ color: rgb(164, 229, 81);
/* oklch */ color: oklch(85.0% 0.189 129.9);

Tailwind

colors: {
  custom: {
    50: '#c3ed88',
    500: '#a4e551',
    950: '#000000',
  },
}

SCSS

$custom: #a4e551;
$custom-light: #c3ed88;
$custom-dark: #000000;

JSON

{
  "hex": "#a4e551",
  "rgb": {
    "r": 164,
    "g": 229,
    "b": 81
  },
  "hsl": {
    "h": 86.351,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.84955,
    "c": 0.18882,
    "h": 129.9
  },
  "luminance": 0.64525
}

Semantic roles & 50–950 ramp

primary

#A4E551

secondary

#6635A6

accent

#0FD667

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#13160C

muted

#82857F

Preview Lab

Preview with #A4E551

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

Preview Lab → · Contrast checker → · Palette generator →