#B1F369#B1F369

#B1F369 is a very light, vivid yellow-green. Relative luminance 0.745; OKLCH L 89.2% C 0.182 H 130.7°. Best body text is #000000 at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#B1F369
RGB	rgb(177, 243, 105)
HSL	hsl(89, 85%, 68%)
HSV	hsv(89, 57%, 95%)
CMYK	cmyk(27.2%, 0%, 56.8%, 4.7%)
CIE-LAB	lab(89.14, -42.35, 58.88)
CIE-LCH	lch(89.14, 72.53, 125.73°)
OKLab	oklab(89.19% -0.1185 0.1378)
OKLCH	oklch(89.19% 0.182 130.7)
XYZ	xyz(52.7313, 74.4668, 24.9572)
Luminance	0.7447 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1F369 #AB69F3

analogous

#F3F069 #B1F369 #6CF369

triadic

#B1F369 #69B1F3 #F369B1

tetradic

#B1F369 #69F3F0 #AB69F3 #F3696C

square

#B1F369 #69F3F0 #AB69F3 #F3696C

split-complementary

#B1F369 #696CF3 #F069F3

monochromatic

#75D111 #94EE30 #B1F369 #CEF8A2 #ECFCDA

Accessibility & contrast

On white

1.32

#B1F369 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.89

#B1F369 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B1F369

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1F369	#FFFFFF	#000000	##000000
##B1F369	1.00	1.32	15.89	15.89
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.89	21.00	1.00	1.00
##000000	15.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE35B

Deuteranopia (green-blind)

#F4DE73

Tritanopia (blue-blind)

#B4EAD5

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #b1f369;
/* rgb */ color: rgb(177, 243, 105);
/* oklch */ color: oklch(89.2% 0.182 130.7);

Tailwind

colors: {
  custom: {
    50: '#cbf798',
    500: '#b1f369',
    950: '#000000',
  },
}

SCSS

$custom: #b1f369;
$custom-light: #cbf798;
$custom-dark: #000000;

JSON

{
  "hex": "#b1f369",
  "rgb": {
    "r": 177,
    "g": 243,
    "b": 105
  },
  "hsl": {
    "h": 88.696,
    "s": 85.185,
    "l": 68.235
  },
  "oklch": {
    "l": 0.89192,
    "c": 0.18178,
    "h": 130.7
  },
  "luminance": 0.74468
}

Semantic roles & 50–950 ramp

primary

#B1F369

secondary

#7D34CC

accent

#04E26E

background

#FEFFFC

surface

#FBFFF5

border

#D4D7CF

text

#14170E

muted

#83857F

Preview Lab

Preview with #B1F369

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

Preview Lab → · Contrast checker → · Palette generator →