#EFF17F#EFF17F

#EFF17F is a very light, vivid yellow. Relative luminance 0.828; OKLCH L 93.3% C 0.137 H 109.7°. Best body text is #000000 at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#EFF17F
RGB	rgb(239, 241, 127)
HSL	hsl(61, 80%, 72%)
HSV	hsv(61, 47%, 95%)
CMYK	cmyk(0.8%, 0%, 47.3%, 5.5%)
CIE-LAB	lab(92.92, -16.08, 54.39)
CIE-LCH	lch(92.92, 56.71, 106.47°)
OKLab	oklab(93.34% -0.0462 0.1292)
OKLCH	oklch(93.34% 0.137 109.7)
XYZ	xyz(70.8841, 82.7952, 32.3216)
Luminance	0.8279 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF17F #817FF1

analogous

#F1BA7F #EFF17F #B6F17F

triadic

#EFF17F #7FEFF1 #F17FEF

tetradic

#EFF17F #7FF1BA #817FF1 #F17FB6

square

#EFF17F #7FF1BA #817FF1 #F17FB6

split-complementary

#EFF17F #7FB6F1 #BA7FF1

monochromatic

#DADD18 #E8EB48 #EFF17F #F6F7B6 #FCFCE3

Accessibility & contrast

On white

1.20

#EFF17F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.56

#EFF17F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF17F

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF17F	#FFFFFF	#000000	##000000
##EFF17F	1.00	1.20	17.56	17.56
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.56	21.00	1.00	1.00
##000000	17.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE975

Deuteranopia (green-blind)

#FFED85

Tritanopia (blue-blind)

#FDE5D7

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff17f;
/* rgb */ color: rgb(239, 241, 127);
/* oklch */ color: oklch(93.3% 0.137 109.7);

Tailwind

colors: {
  custom: {
    50: '#f6f5a6',
    500: '#eff17f',
    950: '#000000',
  },
}

SCSS

$custom: #eff17f;
$custom-light: #f6f5a6;
$custom-dark: #000000;

JSON

{
  "hex": "#eff17f",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 127
  },
  "hsl": {
    "h": 61.053,
    "s": 80.282,
    "l": 72.157
  },
  "oklch": {
    "l": 0.93341,
    "c": 0.13723,
    "h": 109.7
  },
  "luminance": 0.82794
}

Semantic roles & 50–950 ramp

primary

#EFF17F

secondary

#4B48CC

accent

#09DD0D

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#171710

muted

#858580

Preview Lab

Preview with #EFF17F

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

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