#EFFFB1#EFFFB1

#EFFFB1 is a very light, moderate yellow-green. Relative luminance 0.930; OKLCH L 97.0% C 0.100 H 117.7°. Best body text is #000000 at 19.61:1 contrast (WCAG AA passes).

Color values

HEX	#EFFFB1
RGB	rgb(239, 255, 177)
HSL	hsl(72, 100%, 85%)
HSV	hsv(72, 31%, 100%)
CMYK	cmyk(6.3%, 0%, 30.6%, 0%)
CIE-LAB	lab(97.25, -17.44, 35.62)
CIE-LCH	lch(97.25, 39.66, 116.09°)
OKLab	oklab(97.01% -0.0467 0.0889)
OKLCH	oklch(97.01% 0.1 117.7)
XYZ	xyz(79.2921, 93.0455, 55.3688)
Luminance	0.9304 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFFB1 #C1B1FF

analogous

#FFE8B1 #EFFFB1 #C8FFB1

triadic

#EFFFB1 #B1EFFF #FFB1EF

tetradic

#EFFFB1 #B1FFE8 #C1B1FF #FFB1C8

square

#EFFFB1 #B1FFE8 #C1B1FF #FFB1C8

split-complementary

#EFFFB1 #B1C8FF #E8B1FF

monochromatic

#D6FF37 #E2FF74 #EFFFB1 #F9FFE0 #F9FFE0

Accessibility & contrast

On white

1.07

#EFFFB1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.61

#EFFFB1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFFB1

19.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFFB1	#FFFFFF	#000000	##000000
##EFFFB1	1.00	1.07	19.61	19.61
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.61	21.00	1.00	1.00
##000000	19.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF7AC

Deuteranopia (green-blind)

#FFF8B4

Tritanopia (blue-blind)

#F7F7EB

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #efffb1;
/* rgb */ color: rgb(239, 255, 177);
/* oklch */ color: oklch(97.0% 0.100 117.7);

Tailwind

colors: {
  custom: {
    50: '#f5ffc9',
    500: '#efffb1',
    950: '#000000',
  },
}

SCSS

$custom: #efffb1;
$custom-light: #f5ffc9;
$custom-dark: #000000;

JSON

{
  "hex": "#efffb1",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 177
  },
  "hsl": {
    "h": 72.308,
    "s": 100,
    "l": 84.706
  },
  "oklch": {
    "l": 0.97009,
    "c": 0.10042,
    "h": 117.7
  },
  "luminance": 0.93045
}

Semantic roles & 50–950 ramp

primary

#EFFFB1

secondary

#876FE6

accent

#00E62F

background

#FFFFFD

surface

#FEFFF9

border

#D6D7D2

text

#171813

muted

#858682

Preview Lab

Preview with #EFFFB1

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

Preview Lab → · Contrast checker → · Palette generator →