#EFF36F#EFF36F

#EFF36F is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.6% C 0.154 H 110.6°. Best body text is #000000 at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#EFF36F
RGB	rgb(239, 243, 111)
HSL	hsl(62, 85%, 69%)
HSV	hsv(62, 54%, 95%)
CMYK	cmyk(1.6%, 0%, 54.3%, 4.7%)
CIE-LAB	lab(93.28, -18.38, 62.05)
CIE-LCH	lch(93.28, 64.72, 106.50°)
OKLab	oklab(93.57% -0.0543 0.1444)
OKLCH	oklch(93.57% 0.154 110.6)
XYZ	xyz(70.5182, 83.6012, 27.4577)
Luminance	0.8360 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF36F #736FF3

analogous

#F3B56F #EFF36F #ADF36F

triadic

#EFF36F #6FEFF3 #F36FEF

tetradic

#EFF36F #6FF3B5 #736FF3 #F36FAD

square

#EFF36F #6FF3B5 #736FF3 #F36FAD

split-complementary

#EFF36F #6FADF3 #B56FF3

monochromatic

#D0D612 #E9EE37 #EFF36F #F5F8A7 #FCFCE0

Accessibility & contrast

On white

1.19

#EFF36F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.72

#EFF36F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF36F

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF36F	#FFFFFF	#000000	##000000
##EFF36F	1.00	1.19	17.72	17.72
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.72	21.00	1.00	1.00
##000000	17.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA61

Deuteranopia (green-blind)

#FFEE76

Tritanopia (blue-blind)

#FDE6D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff36f;
/* rgb */ color: rgb(239, 243, 111);
/* oklch */ color: oklch(93.6% 0.154 110.6);

Tailwind

colors: {
  custom: {
    50: '#f7f69c',
    500: '#eff36f',
    950: '#000000',
  },
}

SCSS

$custom: #eff36f;
$custom-light: #f7f69c;
$custom-dark: #000000;

JSON

{
  "hex": "#eff36f",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 111
  },
  "hsl": {
    "h": 61.818,
    "s": 84.615,
    "l": 69.412
  },
  "oklch": {
    "l": 0.93568,
    "c": 0.15424,
    "h": 110.6
  },
  "luminance": 0.836
}

Semantic roles & 50–950 ramp

primary

#EFF36F

secondary

#3E3ACC

accent

#04E10B

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #EFF36F

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

Preview Lab → · Contrast checker → · Palette generator →