#EFFD61#EFFD61

#EFFD61 is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.5% C 0.176 H 114.1°. Best body text is #000000 at 18.89:1 contrast (WCAG AA passes).

Color values

HEX	#EFFD61
RGB	rgb(239, 253, 97)
HSL	hsl(65, 98%, 69%)
HSV	hsv(65, 62%, 99%)
CMYK	cmyk(5.5%, 0%, 61.7%, 0.8%)
CIE-LAB	lab(95.77, -24.14, 70.68)
CIE-LCH	lch(95.77, 74.69, 108.86°)
OKLab	oklab(95.53% -0.072 0.161)
OKLCH	oklch(95.53% 0.176 114.1)
XYZ	xyz(72.8813, 89.4656, 24.7362)
Luminance	0.8946 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFD61 #6F61FD

analogous

#FDBD61 #EFFD61 #A1FD61

triadic

#EFFD61 #61EFFD #FD61EF

tetradic

#EFFD61 #61FDBD #6F61FD #FD61A1

square

#EFFD61 #61FDBD #6F61FD #FD61A1

split-complementary

#EFFD61 #61A1FD #BD61FD

monochromatic

#CDE103 #E9FC25 #EFFD61 #F5FE9D #FBFFDA

Accessibility & contrast

On white

1.11

#EFFD61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.89

#EFFD61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFD61

18.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFD61	#FFFFFF	#000000	##000000
##EFFD61	1.00	1.11	18.89	18.89
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.89	21.00	1.00	1.00
##000000	18.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF14D

Deuteranopia (green-blind)

#FFF46B

Tritanopia (blue-blind)

#FEEFDD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effd61;
/* rgb */ color: rgb(239, 253, 97);
/* oklch */ color: oklch(95.5% 0.176 114.1);

Tailwind

colors: {
  custom: {
    50: '#f7fd94',
    500: '#effd61',
    950: '#000000',
  },
}

SCSS

$custom: #effd61;
$custom-light: #f7fd94;
$custom-dark: #000000;

JSON

{
  "hex": "#effd61",
  "rgb": {
    "r": 239,
    "g": 253,
    "b": 97
  },
  "hsl": {
    "h": 65.385,
    "s": 97.5,
    "l": 68.627
  },
  "oklch": {
    "l": 0.95525,
    "c": 0.17638,
    "h": 114.1
  },
  "luminance": 0.89464
}

Semantic roles & 50–950 ramp

primary

#EFFD61

secondary

#3B2BD7

accent

#00E615

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFD61

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

Preview Lab → · Contrast checker → · Palette generator →