#B1E059#B1E059

#B1E059 is a very light, vivid yellow-green. Relative luminance 0.634; OKLCH L 84.7% C 0.170 H 126.0°. Best body text is #000000 at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#B1E059
RGB	rgb(177, 224, 89)
HSL	hsl(81, 69%, 61%)
HSV	hsv(81, 60%, 88%)
CMYK	cmyk(21%, 0%, 60.3%, 12.2%)
CIE-LAB	lab(83.64, -35.25, 59.59)
CIE-LCH	lch(83.64, 69.24, 120.61°)
OKLab	oklab(84.69% -0.1002 0.1377)
OKLCH	oklch(84.69% 0.17 126)
XYZ	xyz(46.5904, 63.3791, 19.2281)
Luminance	0.6338 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1E059 #8859E0

analogous

#E0CC59 #B1E059 #6EE059

triadic

#B1E059 #59B1E0 #E059B1

tetradic

#B1E059 #59E0CC #8859E0 #E0596E

square

#B1E059 #59E0CC #8859E0 #E0596E

split-complementary

#B1E059 #596EE0 #CC59E0

monochromatic

#73A11E #98D428 #B1E059 #C9EA8D #E1F3C0

Accessibility & contrast

On white

1.54

#B1E059 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.68

#B1E059 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1E059

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1E059	#FFFFFF	#000000	##000000
##B1E059	1.00	1.54	13.68	13.68
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.68	21.00	1.00	1.00
##000000	13.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EBD249

Deuteranopia (green-blind)

#E5D063

Tritanopia (blue-blind)

#B8D6C3

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #b1e059;
/* rgb */ color: rgb(177, 224, 89);
/* oklch */ color: oklch(84.7% 0.170 126.0);

Tailwind

colors: {
  custom: {
    50: '#cbea8d',
    500: '#b1e059',
    950: '#000000',
  },
}

SCSS

$custom: #b1e059;
$custom-light: #cbea8d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1e059",
  "rgb": {
    "r": 177,
    "g": 224,
    "b": 89
  },
  "hsl": {
    "h": 80.889,
    "s": 68.528,
    "l": 61.373
  },
  "oklch": {
    "l": 0.8469,
    "c": 0.17029,
    "h": 126
  },
  "luminance": 0.6338
}

Semantic roles & 50–950 ramp

primary

#B1E059

secondary

#5E3AA4

accent

#15D056

background

#FEFEFC

surface

#FBFDF4

border

#D4D5CE

text

#14160C

muted

#83847F

Preview Lab

Preview with #B1E059

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

Preview Lab → · Contrast checker → · Palette generator →