#EFFA66#EFFA66

#EFFA66 is a very light, vivid yellow. Relative luminance 0.877; OKLCH L 94.9% C 0.169 H 113.2°. Best body text is #000000 at 18.54:1 contrast (WCAG AA passes).

Color values

HEX	#EFFA66
RGB	rgb(239, 250, 102)
HSL	hsl(64, 94%, 69%)
HSV	hsv(64, 59%, 98%)
CMYK	cmyk(4.4%, 0%, 59.2%, 2%)
CIE-LAB	lab(95.03, -22.39, 67.84)
CIE-LCH	lch(95.03, 71.44, 108.26°)
OKLab	oklab(94.94% -0.0666 0.1557)
OKLCH	oklch(94.94% 0.169 113.2)
XYZ	xyz(72.1822, 87.6826, 25.6898)
Luminance	0.8768 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFA66 #7166FA

analogous

#FABB66 #EFFA66 #A5FA66

triadic

#EFFA66 #66EFFA #FA66EF

tetradic

#EFFA66 #66FABB #7166FA #FA66A5

square

#EFFA66 #66FABB #7166FA #FA66A5

split-complementary

#EFFA66 #66A5FA #BB66FA

monochromatic

#CEDE07 #E9F82B #EFFA66 #F5FCA1 #FBFEDD

Accessibility & contrast

On white

1.13

#EFFA66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.54

#EFFA66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFA66

18.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFA66	#FFFFFF	#000000	##000000
##EFFA66	1.00	1.13	18.54	18.54
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.54	21.00	1.00	1.00
##000000	18.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF55

Deuteranopia (green-blind)

#FFF26F

Tritanopia (blue-blind)

#FDECDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #effa66;
/* rgb */ color: rgb(239, 250, 102);
/* oklch */ color: oklch(94.9% 0.169 113.2);

Tailwind

colors: {
  custom: {
    50: '#f7fb97',
    500: '#effa66',
    950: '#000000',
  },
}

SCSS

$custom: #effa66;
$custom-light: #f7fb97;
$custom-dark: #000000;

JSON

{
  "hex": "#effa66",
  "rgb": {
    "r": 239,
    "g": 250,
    "b": 102
  },
  "hsl": {
    "h": 64.459,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.9494,
    "c": 0.1693,
    "h": 113.2
  },
  "luminance": 0.87681
}

Semantic roles & 50–950 ramp

primary

#EFFA66

secondary

#3C30D4

accent

#00E611

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFA66

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

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