#EFF781#EFF781

#EFF781 is a very light, vivid yellow. Relative luminance 0.865; OKLCH L 94.6% C 0.142 H 112.3°. Best body text is #000000 at 18.29:1 contrast (WCAG AA passes).

Color values

HEX	#EFF781
RGB	rgb(239, 247, 129)
HSL	hsl(64, 88%, 74%)
HSV	hsv(64, 48%, 97%)
CMYK	cmyk(3.2%, 0%, 47.8%, 3.1%)
CIE-LAB	lab(94.51, -18.81, 55.36)
CIE-LCH	lch(94.51, 58.46, 108.77°)
OKLab	oklab(94.61% -0.0538 0.1315)
OKLCH	oklch(94.61% 0.142 112.3)
XYZ	xyz(72.8211, 86.4585, 33.6167)
Luminance	0.8646 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF781 #8981F7

analogous

#F7C481 #EFF781 #B4F781

triadic

#EFF781 #81EFF7 #F781EF

tetradic

#EFF781 #81F7C4 #8981F7 #F781B4

square

#EFF781 #81F7C4 #8981F7 #F781B4

split-complementary

#EFF781 #81B4F7 #C481F7

monochromatic

#DFEE0F #E8F347 #EFF781 #F6FBBB #FBFDE2

Accessibility & contrast

On white

1.15

#EFF781 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.29

#EFF781 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF781

18.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF781	#FFFFFF	#000000	##000000
##EFF781	1.00	1.15	18.29	18.29
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.29	21.00	1.00	1.00
##000000	18.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE77

Deuteranopia (green-blind)

#FFF187

Tritanopia (blue-blind)

#FCEBDC

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff781;
/* rgb */ color: rgb(239, 247, 129);
/* oklch */ color: oklch(94.6% 0.142 112.3);

Tailwind

colors: {
  custom: {
    50: '#f6f9a8',
    500: '#eff781',
    950: '#000000',
  },
}

SCSS

$custom: #eff781;
$custom-light: #f6f9a8;
$custom-dark: #000000;

JSON

{
  "hex": "#eff781",
  "rgb": {
    "r": 239,
    "g": 247,
    "b": 129
  },
  "hsl": {
    "h": 64.068,
    "s": 88.06,
    "l": 73.725
  },
  "oklch": {
    "l": 0.94611,
    "c": 0.14208,
    "h": 112.3
  },
  "luminance": 0.86457
}

Semantic roles & 50–950 ramp

primary

#EFF781

secondary

#5249D4

accent

#01E510

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF781

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

Preview Lab → · Contrast checker → · Palette generator →