#EFFE78#EFFE78

#EFFE78 is a very light, vivid yellow. Relative luminance 0.906; OKLCH L 96.0% C 0.159 H 114.7°. Best body text is #000000 at 19.12:1 contrast (WCAG AA passes).

Color values

HEX	#EFFE78
RGB	rgb(239, 254, 120)
HSL	hsl(67, 99%, 73%)
HSV	hsv(67, 53%, 100%)
CMYK	cmyk(5.9%, 0%, 52.8%, 0.4%)
CIE-LAB	lab(96.24, -22.94, 61.48)
CIE-LCH	lch(96.24, 65.62, 110.46°)
OKLab	oklab(95.97% -0.0664 0.144)
OKLCH	oklch(95.97% 0.159 114.7)
XYZ	xyz(74.4299, 90.5915, 31.3306)
Luminance	0.9059 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFE78 #8778FE

analogous

#FECA78 #EFFE78 #ACFE78

triadic

#EFFE78 #78EFFE #FE78EF

tetradic

#EFFE78 #78FECA #8778FE #FE78AC

square

#EFFE78 #78FECA #8778FE #FE78AC

split-complementary

#EFFE78 #78ACFE #CA78FE

monochromatic

#DEFA02 #E8FE3B #EFFE78 #F6FEB5 #FBFFE1

Accessibility & contrast

On white

1.10

#EFFE78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.12

#EFFE78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFE78

19.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFE78	#FFFFFF	#000000	##000000
##EFFE78	1.00	1.10	19.12	19.12
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.12	21.00	1.00	1.00
##000000	19.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF36B

Deuteranopia (green-blind)

#FFF580

Tritanopia (blue-blind)

#FCF1E0

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #effe78;
/* rgb */ color: rgb(239, 254, 120);
/* oklch */ color: oklch(96.0% 0.159 114.7);

Tailwind

colors: {
  custom: {
    50: '#f6fea3',
    500: '#effe78',
    950: '#000000',
  },
}

SCSS

$custom: #effe78;
$custom-light: #f6fea3;
$custom-dark: #000000;

JSON

{
  "hex": "#effe78",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 120
  },
  "hsl": {
    "h": 66.716,
    "s": 98.529,
    "l": 73.333
  },
  "oklch": {
    "l": 0.95965,
    "c": 0.1586,
    "h": 114.7
  },
  "luminance": 0.9059
}

Semantic roles & 50–950 ramp

primary

#EFFE78

secondary

#503FDC

accent

#00E61A

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFFE78

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

Preview Lab → · Contrast checker → · Palette generator →