#EFF38C#EFF38C

#EFF38C is a very light, vivid yellow. Relative luminance 0.843; OKLCH L 93.9% C 0.126 H 110.5°. Best body text is #000000 at 17.87:1 contrast (WCAG AA passes).

Color values

HEX	#EFF38C
RGB	rgb(239, 243, 140)
HSL	hsl(62, 81%, 75%)
HSV	hsv(62, 42%, 95%)
CMYK	cmyk(1.6%, 0%, 42.4%, 4.7%)
CIE-LAB	lab(93.60, -15.82, 49.06)
CIE-LCH	lch(93.60, 51.55, 107.87°)
OKLab	oklab(93.93% -0.0443 0.1183)
OKLCH	oklch(93.93% 0.126 110.5)
XYZ	xyz(72.3819, 84.3467, 37.2734)
Luminance	0.8435 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF38C #908CF3

analogous

#F3C38C #EFF38C #BCF38C

triadic

#EFF38C #8CEFF3 #F38CEF

tetradic

#EFF38C #8CF3C3 #908CF3 #F38CBC

square

#EFF38C #8CF3C3 #908CF3 #F38CBC

split-complementary

#EFF38C #8CBCF3 #C38CF3

monochromatic

#E0E71D #E7ED55 #EFF38C #F7F9C3 #FBFCE3

Accessibility & contrast

On white

1.18

#EFF38C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.87

#EFF38C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF38C

17.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF38C	#FFFFFF	#000000	##000000
##EFF38C	1.00	1.18	17.87	17.87
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.87	21.00	1.00	1.00
##000000	17.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB84

Deuteranopia (green-blind)

#FFEE91

Tritanopia (blue-blind)

#FBE8DA

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff38c;
/* rgb */ color: rgb(239, 243, 140);
/* oklch */ color: oklch(93.9% 0.126 110.5);

Tailwind

colors: {
  custom: {
    50: '#f6f7af',
    500: '#eff38c',
    950: '#000000',
  },
}

SCSS

$custom: #eff38c;
$custom-light: #f6f7af;
$custom-dark: #000000;

JSON

{
  "hex": "#eff38c",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 140
  },
  "hsl": {
    "h": 62.33,
    "s": 81.102,
    "l": 75.098
  },
  "oklch": {
    "l": 0.93931,
    "c": 0.12634,
    "h": 110.5
  },
  "luminance": 0.84345
}

Semantic roles & 50–950 ramp

primary

#EFF38C

secondary

#5853D0

accent

#08DD10

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF38C

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

Preview Lab → · Contrast checker → · Palette generator →