#EFFE5E#EFFE5E

#EFFE5E is a very light, vivid yellow. Relative luminance 0.900; OKLCH L 95.7% C 0.180 H 114.4°. Best body text is #000000 at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#EFFE5E
RGB	rgb(239, 254, 94)
HSL	hsl(66, 99%, 68%)
HSV	hsv(66, 63%, 100%)
CMYK	cmyk(5.9%, 0%, 63%, 0.4%)
CIE-LAB	lab(96.01, -24.80, 72.12)
CIE-LCH	lch(96.01, 76.26, 108.98°)
OKLab	oklab(95.71% -0.0742 0.1636)
OKLCH	oklch(95.71% 0.18 114.4)
XYZ	xyz(73.0606, 90.0438, 24.1189)
Luminance	0.9004 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFE5E #6D5EFE

analogous

#FEBD5E #EFFE5E #9FFE5E

triadic

#EFFE5E #5EEFFE #FE5EEF

tetradic

#EFFE5E #5EFEBD #6D5EFE #FE5E9F

square

#EFFE5E #5EFEBD #6D5EFE #FE5E9F

split-complementary

#EFFE5E #5E9FFE #BD5EFE

monochromatic

#CBE001 #E9FE21 #EFFE5E #F5FE9B #FBFFD8

Accessibility & contrast

On white

1.10

#EFFE5E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.01

#EFFE5E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFE5E

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFE5E	#FFFFFF	#000000	##000000
##EFFE5E	1.00	1.10	19.01	19.01
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.01	21.00	1.00	1.00
##000000	19.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF249

Deuteranopia (green-blind)

#FFF569

Tritanopia (blue-blind)

#FEF0DD

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #effe5e;
/* rgb */ color: rgb(239, 254, 94);
/* oklch */ color: oklch(95.7% 0.180 114.4);

Tailwind

colors: {
  custom: {
    50: '#f7fe93',
    500: '#effe5e',
    950: '#000000',
  },
}

SCSS

$custom: #effe5e;
$custom-light: #f7fe93;
$custom-dark: #000000;

JSON

{
  "hex": "#effe5e",
  "rgb": {
    "r": 239,
    "g": 254,
    "b": 94
  },
  "hsl": {
    "h": 65.625,
    "s": 98.765,
    "l": 68.235
  },
  "oklch": {
    "l": 0.9571,
    "c": 0.17966,
    "h": 114.4
  },
  "luminance": 0.90042
}

Semantic roles & 50–950 ramp

primary

#EFFE5E

secondary

#3928D8

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFE5E

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

Preview Lab → · Contrast checker → · Palette generator →