#B5EC59#B5EC59

#B5EC59 is a very light, vivid yellow-green. Relative luminance 0.705; OKLCH L 87.7% C 0.184 H 127.3°. Best body text is #000000 at 15.11:1 contrast (WCAG AA passes).

Color values

HEX	#B5EC59
RGB	rgb(181, 236, 89)
HSL	hsl(82, 79%, 64%)
HSV	hsv(82, 62%, 93%)
CMYK	cmyk(23.3%, 0%, 62.3%, 7.5%)
CIE-LAB	lab(87.26, -39.17, 63.62)
CIE-LCH	lch(87.26, 74.71, 121.62°)
OKLab	oklab(87.68% -0.1113 0.1462)
OKLCH	oklch(87.68% 0.184 127.3)
XYZ	xyz(50.8547, 70.5350, 20.3846)
Luminance	0.7054 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5EC59 #9059EC

analogous

#ECD959 #B5EC59 #6BEC59

triadic

#B5EC59 #59B5EC #EC59B5

tetradic

#B5EC59 #59ECD9 #9059EC #EC596B

square

#B5EC59 #59ECD9 #9059EC #EC596B

split-complementary

#B5EC59 #596BEC #D959EC

monochromatic

#7AB615 #9DE622 #B5EC59 #CDF290 #E6F9C7

Accessibility & contrast

On white

1.39

#B5EC59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.11

#B5EC59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5EC59

15.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5EC59	#FFFFFF	#000000	##000000
##B5EC59	1.00	1.39	15.11	15.11
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.11	21.00	1.00	1.00
##000000	15.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F7DD47

Deuteranopia (green-blind)

#F0DA64

Tritanopia (blue-blind)

#BBE2CD

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #b5ec59;
/* rgb */ color: rgb(181, 236, 89);
/* oklch */ color: oklch(87.7% 0.184 127.3);

Tailwind

colors: {
  custom: {
    50: '#cef28e',
    500: '#b5ec59',
    950: '#000000',
  },
}

SCSS

$custom: #b5ec59;
$custom-light: #cef28e;
$custom-dark: #000000;

JSON

{
  "hex": "#b5ec59",
  "rgb": {
    "r": 181,
    "g": 236,
    "b": 89
  },
  "hsl": {
    "h": 82.449,
    "s": 79.459,
    "l": 63.725
  },
  "oklch": {
    "l": 0.87679,
    "c": 0.18369,
    "h": 127.3
  },
  "luminance": 0.70536
}

Semantic roles & 50–950 ramp

primary

#B5EC59

secondary

#6434B5

accent

#0ADC58

background

#FEFFFC

surface

#FBFEF4

border

#D4D6CE

text

#14170D

muted

#83857F

Preview Lab

Preview with #B5EC59

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

Preview Lab → · Contrast checker → · Palette generator →