#EFFA78#EFFA78

#EFFA78 is a very light, vivid yellow. Relative luminance 0.881; OKLCH L 95.1% C 0.154 H 113.3°. Best body text is #000000 at 18.62:1 contrast (WCAG AA passes).

Color values

HEX	#EFFA78
RGB	rgb(239, 250, 120)
HSL	hsl(65, 93%, 73%)
HSV	hsv(65, 52%, 98%)
CMYK	cmyk(4.4%, 0%, 52%, 2%)
CIE-LAB	lab(95.19, -21.03, 60.27)
CIE-LCH	lch(95.19, 63.83, 109.24°)
OKLab	oklab(95.13% -0.061 0.1414)
OKLCH	oklch(95.13% 0.154 113.3)
XYZ	xyz(73.1738, 88.0793, 30.9119)
Luminance	0.8808 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFA78 #8378FA

analogous

#FAC478 #EFFA78 #AEFA78

triadic

#EFFA78 #78EFFA #FA78EF

tetradic

#EFFA78 #78FAC4 #8378FA #FA78AE

square

#EFFA78 #78FAC4 #8378FA #FA78AE

split-complementary

#EFFA78 #78AEFA #C478FA

monochromatic

#DBEF09 #E8F83D #EFFA78 #F6FCB3 #FCFEE1

Accessibility & contrast

On white

1.13

#EFFA78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.62

#EFFA78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFA78

18.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFA78	#FFFFFF	#000000	##000000
##EFFA78	1.00	1.13	18.62	18.62
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.62	21.00	1.00	1.00
##000000	18.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF06B

Deuteranopia (green-blind)

#FFF37F

Tritanopia (blue-blind)

#FCEDDD

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #effa78;
/* rgb */ color: rgb(239, 250, 120);
/* oklch */ color: oklch(95.1% 0.154 113.3);

Tailwind

colors: {
  custom: {
    50: '#f6fba2',
    500: '#effa78',
    950: '#000000',
  },
}

SCSS

$custom: #effa78;
$custom-light: #f6fba2;
$custom-dark: #000000;

JSON

{
  "hex": "#effa78",
  "rgb": {
    "r": 239,
    "g": 250,
    "b": 120
  },
  "hsl": {
    "h": 65.077,
    "s": 92.857,
    "l": 72.549
  },
  "oklch": {
    "l": 0.95127,
    "c": 0.15399,
    "h": 113.3
  },
  "luminance": 0.88078
}

Semantic roles & 50–950 ramp

primary

#EFFA78

secondary

#4D40D6

accent

#00E613

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFA78

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

Preview Lab → · Contrast checker → · Palette generator →