#EFFD65#EFFD65

#EFFD65 is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.6% C 0.173 H 114.1°. Best body text is #000000 at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD65
RGB	rgb(239, 253, 101)
HSL	hsl(66, 97%, 69%)
HSV	hsv(66, 60%, 99%)
CMYK	cmyk(5.5%, 0%, 60.1%, 0.8%)
CIE-LAB	lab(95.81, -23.88, 69.10)
CIE-LCH	lch(95.81, 73.11, 109.06°)
OKLab	oklab(95.56% -0.0709 0.1582)
OKLCH	oklch(95.56% 0.173 114.1)
XYZ	xyz(73.0726, 89.5421, 25.7434)
Luminance	0.8954 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD65 #7365FD

analogous

#FDBF65 #EFFD65 #A3FD65

triadic

#EFFD65 #65EFFD #FD65EF

tetradic

#EFFD65 #65FDBF #7365FD #FD65A3

square

#EFFD65 #65FDBF #7365FD #FD65A3

split-complementary

#EFFD65 #65A3FD #BF65FD

monochromatic

#D0E503 #E9FC29 #EFFD65 #F5FEA1 #FCFFDE

Accessibility & contrast

On white

1.11

#EFFD65 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.91

#EFFD65 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD65

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD65	#FFFFFF	#000000	##000000
##EFFD65	1.00	1.11	18.91	18.91
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.91	21.00	1.00	1.00
##000000	18.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF253

Deuteranopia (green-blind)

#FFF46F

Tritanopia (blue-blind)

#FDEFDD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effd65;
/* rgb */ color: rgb(239, 253, 101);
/* oklch */ color: oklch(95.6% 0.173 114.1);

Tailwind

colors: {
  custom: {
    50: '#f7fe97',
    500: '#effd65',
    950: '#000000',
  },
}

SCSS

$custom: #effd65;
$custom-light: #f7fe97;
$custom-dark: #000000;

JSON

{
  "hex": "#effd65",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 101
  },
  "hsl": {
    "h": 65.526,
    "s": 97.436,
    "l": 69.412
  },
  "oklch": {
    "l": 0.95561,
    "c": 0.17334,
    "h": 114.1
  },
  "luminance": 0.89541
}

Semantic roles & 50–950 ramp

primary

#EFFD65

secondary

#3E2FD8

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFD65

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

Preview Lab → · Contrast checker → · Palette generator →