#EFFF69#EFFF69

#EFFF69 is a very light, vivid yellow. Relative luminance 0.909; OKLCH L 96.0% C 0.172 H 114.8°. Best body text is #000000 at 19.18:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF69
RGB	rgb(239, 255, 105)
HSL	hsl(66, 100%, 71%)
HSV	hsv(66, 59%, 100%)
CMYK	cmyk(6.3%, 0%, 58.8%, 0%)
CIE-LAB	lab(96.37, -24.55, 68.06)
CIE-LCH	lch(96.37, 72.36, 109.83°)
OKLab	oklab(96.02% -0.0724 0.1565)
OKLCH	oklch(96.02% 0.172 114.8)
XYZ	xyz(73.9080, 90.8918, 27.0123)
Luminance	0.9089 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF69 #7969FF

analogous

#FFC469 #EFFF69 #A4FF69

triadic

#EFFF69 #69EFFF #FF69EF

tetradic

#EFFF69 #69FFC4 #7969FF #FF69A4

square

#EFFF69 #69FFC4 #7969FF #FF69A4

split-complementary

#EFFF69 #69A4FF #C469FF

monochromatic

#D4EE00 #E8FF2C #EFFF69 #F6FFA6 #FCFFE0

Accessibility & contrast

On white

1.09

#EFFF69 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.18

#EFFF69 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF69

19.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF69	#FFFFFF	#000000	##000000
##EFFF69	1.00	1.09	19.18	19.18
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.18	21.00	1.00	1.00
##000000	19.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF358

Deuteranopia (green-blind)

#FFF672

Tritanopia (blue-blind)

#FDF2DF

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #efff69;
/* rgb */ color: rgb(239, 255, 105);
/* oklch */ color: oklch(96.0% 0.172 114.8);

Tailwind

colors: {
  custom: {
    50: '#f7ff99',
    500: '#efff69',
    950: '#000000',
  },
}

SCSS

$custom: #efff69;
$custom-light: #f7ff99;
$custom-dark: #000000;

JSON

{
  "hex": "#efff69",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 105
  },
  "hsl": {
    "h": 66.4,
    "s": 100,
    "l": 70.588
  },
  "oklch": {
    "l": 0.96019,
    "c": 0.17241,
    "h": 114.8
  },
  "luminance": 0.90891
}

Semantic roles & 50–950 ramp

primary

#EFFF69

secondary

#4431DB

accent

#00E618

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFF69

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

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