#EFF17B#EFF17B

#EFF17B is a very light, vivid yellow. Relative luminance 0.827; OKLCH L 93.3% C 0.141 H 109.7°. Best body text is #000000 at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#EFF17B
RGB	rgb(239, 241, 123)
HSL	hsl(61, 81%, 71%)
HSV	hsv(61, 49%, 95%)
CMYK	cmyk(0.8%, 0%, 49%, 5.5%)
CIE-LAB	lab(92.88, -16.43, 56.19)
CIE-LCH	lch(92.88, 58.54, 106.30°)
OKLab	oklab(93.29% -0.0476 0.1328)
OKLCH	oklch(93.29% 0.141 109.7)
XYZ	xyz(70.6286, 82.6930, 30.9758)
Luminance	0.8269 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF17B #7D7BF1

analogous

#F1B87B #EFF17B #B4F17B

triadic

#EFF17B #7BEFF1 #F17BEF

tetradic

#EFF17B #7BF1B8 #7D7BF1 #F17BB4

square

#EFF17B #7BF1B8 #7D7BF1 #F17BB4

split-complementary

#EFF17B #7BB4F1 #B87BF1

monochromatic

#D7DA17 #E8EB44 #EFF17B #F6F7B2 #FCFCE3

Accessibility & contrast

On white

1.20

#EFF17B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.54

#EFF17B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF17B

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF17B	#FFFFFF	#000000	##000000
##EFF17B	1.00	1.20	17.54	17.54
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.54	21.00	1.00	1.00
##000000	17.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE870

Deuteranopia (green-blind)

#FFEC81

Tritanopia (blue-blind)

#FDE5D6

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff17b;
/* rgb */ color: rgb(239, 241, 123);
/* oklch */ color: oklch(93.3% 0.141 109.7);

Tailwind

colors: {
  custom: {
    50: '#f6f5a4',
    500: '#eff17b',
    950: '#000000',
  },
}

SCSS

$custom: #eff17b;
$custom-light: #f6f5a4;
$custom-dark: #000000;

JSON

{
  "hex": "#eff17b",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 123
  },
  "hsl": {
    "h": 61.017,
    "s": 80.822,
    "l": 71.373
  },
  "oklch": {
    "l": 0.93291,
    "c": 0.1411,
    "h": 109.7
  },
  "luminance": 0.82691
}

Semantic roles & 50–950 ramp

primary

#EFF17B

secondary

#4745CB

accent

#08DD0C

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF17B

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

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