#EFF18F#EFF18F

#EFF18F is a very light, vivid yellow. Relative luminance 0.832; OKLCH L 93.6% C 0.121 H 109.5°. Best body text is #000000 at 17.65:1 contrast (WCAG AA passes).

Color values

HEX	#EFF18F
RGB	rgb(239, 241, 143)
HSL	hsl(61, 78%, 75%)
HSV	hsv(61, 41%, 95%)
CMYK	cmyk(0.8%, 0%, 40.7%, 5.5%)
CIE-LAB	lab(93.12, -14.54, 47.01)
CIE-LCH	lch(93.12, 49.21, 107.18°)
OKLab	oklab(93.56% -0.0404 0.1139)
OKLCH	oklch(93.56% 0.121 109.5)
XYZ	xyz(72.0109, 83.2459, 38.2559)
Luminance	0.8324 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF18F #918FF1

analogous

#F1C28F #EFF18F #BEF18F

triadic

#EFF18F #8FEFF1 #F18FEF

tetradic

#EFF18F #8FF1C2 #918FF1 #F18FBE

square

#EFF18F #8FF1C2 #918FF1 #F18FBE

split-complementary

#EFF18F #8FBEF1 #C28FF1

monochromatic

#DFE322 #E7EA59 #EFF18F #F7F8C5 #FBFCE4

Accessibility & contrast

On white

1.19

#EFF18F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.65

#EFF18F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF18F

17.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF18F	#FFFFFF	#000000	##000000
##EFF18F	1.00	1.19	17.65	17.65
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.65	21.00	1.00	1.00
##000000	17.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE987

Deuteranopia (green-blind)

#FFED93

Tritanopia (blue-blind)

#FBE6D9

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff18f;
/* rgb */ color: rgb(239, 241, 143);
/* oklch */ color: oklch(93.6% 0.121 109.5);

Tailwind

colors: {
  custom: {
    50: '#f6f5b1',
    500: '#eff18f',
    950: '#000000',
  },
}

SCSS

$custom: #eff18f;
$custom-light: #f6f5b1;
$custom-dark: #000000;

JSON

{
  "hex": "#eff18f",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 143
  },
  "hsl": {
    "h": 61.224,
    "s": 77.778,
    "l": 75.294
  },
  "oklch": {
    "l": 0.93562,
    "c": 0.12086,
    "h": 109.5
  },
  "luminance": 0.83244
}

Semantic roles & 50–950 ramp

primary

#EFF18F

secondary

#5957CD

accent

#0BDA10

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF18F

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

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