#EFF37E#EFF37E

#EFF37E is a very light, vivid yellow. Relative luminance 0.840; OKLCH L 93.7% C 0.140 H 110.6°. Best body text is #000000 at 17.79:1 contrast (WCAG AA passes).

Color values

HEX	#EFF37E
RGB	rgb(239, 243, 126)
HSL	hsl(62, 83%, 72%)
HSV	hsv(62, 48%, 95%)
CMYK	cmyk(1.6%, 0%, 48.1%, 4.7%)
CIE-LAB	lab(93.43, -17.14, 55.46)
CIE-LCH	lch(93.43, 58.05, 107.17°)
OKLab	oklab(93.74% -0.0493 0.1315)
OKLCH	oklch(93.74% 0.14 110.6)
XYZ	xyz(71.4145, 83.9598, 32.1785)
Luminance	0.8396 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF37E #827EF3

analogous

#F3BC7E #EFF37E #B5F37E

triadic

#EFF37E #7EEFF3 #F37EEF

tetradic

#EFF37E #7EF3BC #827EF3 #F37EB5

square

#EFF37E #7EF3BC #827EF3 #F37EB5

split-complementary

#EFF37E #7EB5F3 #BC7EF3

monochromatic

#DBE215 #E8EE46 #EFF37E #F6F8B6 #FCFCE3

Accessibility & contrast

On white

1.18

#EFF37E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.79

#EFF37E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF37E

17.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF37E	#FFFFFF	#000000	##000000
##EFF37E	1.00	1.18	17.79	17.79
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.79	21.00	1.00	1.00
##000000	17.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA73

Deuteranopia (green-blind)

#FFEE84

Tritanopia (blue-blind)

#FCE7D8

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff37e;
/* rgb */ color: rgb(239, 243, 126);
/* oklch */ color: oklch(93.7% 0.140 110.6);

Tailwind

colors: {
  custom: {
    50: '#f6f6a6',
    500: '#eff37e',
    950: '#000000',
  },
}

SCSS

$custom: #eff37e;
$custom-light: #f6f6a6;
$custom-dark: #000000;

JSON

{
  "hex": "#eff37e",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 126
  },
  "hsl": {
    "h": 62.051,
    "s": 82.979,
    "l": 72.353
  },
  "oklch": {
    "l": 0.93742,
    "c": 0.14044,
    "h": 110.6
  },
  "luminance": 0.83958
}

Semantic roles & 50–950 ramp

primary

#EFF37E

secondary

#4C47CE

accent

#06DF0E

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF37E

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

Preview Lab → · Contrast checker → · Palette generator →