#EFF066#EFF066

#EFF066 is a very light, vivid yellow. Relative luminance 0.816; OKLCH L 92.9% C 0.159 H 109.5°. Best body text is #000000 at 17.33:1 contrast (WCAG AA passes).

Color values

HEX	#EFF066
RGB	rgb(239, 240, 102)
HSL	hsl(60, 82%, 67%)
HSV	hsv(60, 58%, 94%)
CMYK	cmyk(0.4%, 0%, 57.5%, 5.9%)
CIE-LAB	lab(92.41, -17.58, 64.97)
CIE-LCH	lch(92.41, 67.31, 105.14°)
OKLab	oklab(92.85% -0.053 0.1495)
OKLCH	oklch(92.85% 0.159 109.5)
XYZ	xyz(69.1569, 81.6320, 24.6813)
Luminance	0.8163 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF066 #6766F0

analogous

#F0AC66 #EFF066 #AAF066

triadic

#EFF066 #66EFF0 #F066EF

tetradic

#EFF066 #66F0AC #6766F0 #F066AA

square

#EFF066 #66F0AC #6766F0 #F066AA

split-complementary

#EFF066 #66AAF0 #AC66F0

monochromatic

#C7C814 #E9EB2E #EFF066 #F5F59E #FBFBD5

Accessibility & contrast

On white

1.21

#EFF066 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.33

#EFF066 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF066

17.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF066	#FFFFFF	#000000	##000000
##EFF066	1.00	1.21	17.33	17.33
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.33	21.00	1.00	1.00
##000000	17.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE757

Deuteranopia (green-blind)

#FFEB6E

Tritanopia (blue-blind)

#FEE2D2

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff066;
/* rgb */ color: rgb(239, 240, 102);
/* oklch */ color: oklch(92.9% 0.159 109.5);

Tailwind

colors: {
  custom: {
    50: '#f7f496',
    500: '#eff066',
    950: '#000000',
  },
}

SCSS

$custom: #eff066;
$custom-light: #f7f496;
$custom-dark: #000000;

JSON

{
  "hex": "#eff066",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 102
  },
  "hsl": {
    "h": 60.435,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.92851,
    "c": 0.15867,
    "h": 109.5
  },
  "luminance": 0.8163
}

Semantic roles & 50–950 ramp

primary

#EFF066

secondary

#3635C5

accent

#07DF09

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF066

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

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