#EFF18B#EFF18B

#EFF18B is a very light, vivid yellow. Relative luminance 0.831; OKLCH L 93.5% C 0.125 H 109.6°. Best body text is #000000 at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#EFF18B
RGB	rgb(239, 241, 139)
HSL	hsl(61, 78%, 75%)
HSV	hsv(61, 42%, 95%)
CMYK	cmyk(0.8%, 0%, 42.3%, 5.5%)
CIE-LAB	lab(93.07, -14.94, 48.88)
CIE-LCH	lch(93.07, 51.11, 107.00°)
OKLab	oklab(93.5% -0.0419 0.1179)
OKLCH	oklch(93.5% 0.125 109.6)
XYZ	xyz(71.7133, 83.1268, 36.6884)
Luminance	0.8313 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF18B #8D8BF1

analogous

#F1C08B #EFF18B #BCF18B

triadic

#EFF18B #8BEFF1 #F18BEF

tetradic

#EFF18B #8BF1C0 #8D8BF1 #F18BBC

square

#EFF18B #8BF1C0 #8D8BF1 #F18BBC

split-complementary

#EFF18B #8BBCF1 #C08BF1

monochromatic

#E0E41E #E7EA54 #EFF18B #F7F8C2 #FBFCE4

Accessibility & contrast

On white

1.19

#EFF18B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.63

#EFF18B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF18B

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF18B	#FFFFFF	#000000	##000000
##EFF18B	1.00	1.19	17.63	17.63
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.63	21.00	1.00	1.00
##000000	17.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE983

Deuteranopia (green-blind)

#FFED90

Tritanopia (blue-blind)

#FCE6D9

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff18b;
/* rgb */ color: rgb(239, 241, 139);
/* oklch */ color: oklch(93.5% 0.125 109.6);

Tailwind

colors: {
  custom: {
    50: '#f6f5ae',
    500: '#eff18b',
    950: '#000000',
  },
}

SCSS

$custom: #eff18b;
$custom-light: #f6f5ae;
$custom-dark: #000000;

JSON

{
  "hex": "#eff18b",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 139
  },
  "hsl": {
    "h": 61.176,
    "s": 78.462,
    "l": 74.51
  },
  "oklch": {
    "l": 0.93504,
    "c": 0.12508,
    "h": 109.6
  },
  "luminance": 0.83125
}

Semantic roles & 50–950 ramp

primary

#EFF18B

secondary

#5653CD

accent

#0BDB0F

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF18B

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

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