#EFF36D#EFF36D

#EFF36D is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.5% C 0.156 H 110.6°. Best body text is #000000 at 17.71:1 contrast (WCAG AA passes).

Color values

HEX	#EFF36D
RGB	rgb(239, 243, 109)
HSL	hsl(62, 85%, 69%)
HSV	hsv(62, 55%, 95%)
CMYK	cmyk(1.6%, 0%, 55.1%, 4.7%)
CIE-LAB	lab(93.26, -18.53, 62.91)
CIE-LCH	lch(93.26, 65.58, 106.41°)
OKLab	oklab(93.55% -0.055 0.146)
OKLCH	oklch(93.55% 0.156 110.6)
XYZ	xyz(70.4093, 83.5577, 26.8843)
Luminance	0.8356 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF36D #716DF3

analogous

#F3B46D #EFF36D #ACF36D

triadic

#EFF36D #6DEFF3 #F36DEF

tetradic

#EFF36D #6DF3B4 #716DF3 #F36DAC

square

#EFF36D #6DF3B4 #716DF3 #F36DAC

split-complementary

#EFF36D #6DACF3 #B46DF3

monochromatic

#CED411 #E9EE34 #EFF36D #F5F8A6 #FBFCDE

Accessibility & contrast

On white

1.19

#EFF36D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.71

#EFF36D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF36D

17.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF36D	#FFFFFF	#000000	##000000
##EFF36D	1.00	1.19	17.71	17.71
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.71	21.00	1.00	1.00
##000000	17.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE95F

Deuteranopia (green-blind)

#FFEE75

Tritanopia (blue-blind)

#FEE6D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff36d;
/* rgb */ color: rgb(239, 243, 109);
/* oklch */ color: oklch(93.5% 0.156 110.6);

Tailwind

colors: {
  custom: {
    50: '#f7f69b',
    500: '#eff36d',
    950: '#000000',
  },
}

SCSS

$custom: #eff36d;
$custom-light: #f7f69b;
$custom-dark: #000000;

JSON

{
  "hex": "#eff36d",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 109
  },
  "hsl": {
    "h": 61.791,
    "s": 84.81,
    "l": 69.02
  },
  "oklch": {
    "l": 0.93546,
    "c": 0.15597,
    "h": 110.6
  },
  "luminance": 0.83556
}

Semantic roles & 50–950 ramp

primary

#EFF36D

secondary

#3C38CC

accent

#04E10B

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #EFF36D

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

Preview Lab → · Contrast checker → · Palette generator →