#EFF863#EFF863

#EFF863 is a very light, vivid yellow. Relative luminance 0.864; OKLCH L 94.5% C 0.169 H 112.5°. Best body text is #000000 at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#EFF863
RGB	rgb(239, 248, 99)
HSL	hsl(64, 91%, 68%)
HSV	hsv(64, 60%, 97%)
CMYK	cmyk(3.6%, 0%, 60.1%, 2.7%)
CIE-LAB	lab(94.48, -21.64, 68.48)
CIE-LCH	lch(94.48, 71.82, 107.53°)
OKLab	oklab(94.49% -0.0648 0.1566)
OKLCH	oklch(94.49% 0.169 112.5)
XYZ	xyz(71.4180, 86.3879, 24.7143)
Luminance	0.8639 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF863 #6C63F8

analogous

#F8B663 #EFF863 #A4F863

triadic

#EFF863 #63EFF8 #F863EF

tetradic

#EFF863 #63F8B6 #6C63F8 #F863A4

square

#EFF863 #63F8B6 #6C63F8 #F863A4

split-complementary

#EFF863 #63A4F8 #B663F8

monochromatic

#CBD70A #E9F528 #EFF863 #F5FB9E #FBFDD8

Accessibility & contrast

On white

1.15

#EFF863 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.28

#EFF863 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF863

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF863	#FFFFFF	#000000	##000000
##EFF863	1.00	1.15	18.28	18.28
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.28	21.00	1.00	1.00
##000000	18.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED51

Deuteranopia (green-blind)

#FFF16C

Tritanopia (blue-blind)

#FEEAD9

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #eff863;
/* rgb */ color: rgb(239, 248, 99);
/* oklch */ color: oklch(94.5% 0.169 112.5);

Tailwind

colors: {
  custom: {
    50: '#f7fa95',
    500: '#eff863',
    950: '#000000',
  },
}

SCSS

$custom: #eff863;
$custom-light: #f7fa95;
$custom-dark: #000000;

JSON

{
  "hex": "#eff863",
  "rgb": {
    "r": 239,
    "g": 248,
    "b": 99
  },
  "hsl": {
    "h": 63.624,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.94493,
    "c": 0.16948,
    "h": 112.5
  },
  "luminance": 0.86386
}

Semantic roles & 50–950 ramp

primary

#EFF863

secondary

#382ED1

accent

#00E60E

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF863

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

Preview Lab → · Contrast checker → · Palette generator →