#EFF178#EFF178

#EFF178 is a very light, vivid yellow. Relative luminance 0.826; OKLCH L 93.3% C 0.144 H 109.7°. Best body text is #000000 at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#EFF178
RGB	rgb(239, 241, 120)
HSL	hsl(61, 81%, 71%)
HSV	hsv(61, 50%, 95%)
CMYK	cmyk(0.8%, 0%, 50.2%, 5.5%)
CIE-LAB	lab(92.85, -16.68, 57.52)
CIE-LCH	lch(92.85, 59.89, 106.17°)
OKLab	oklab(93.25% -0.0486 0.1355)
OKLCH	oklch(93.25% 0.144 109.7)
XYZ	xyz(70.4437, 82.6190, 30.0019)
Luminance	0.8262 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF178 #7A78F1

analogous

#F1B678 #EFF178 #B2F178

triadic

#EFF178 #78EFF1 #F178EF

tetradic

#EFF178 #78F1B6 #7A78F1 #F178B2

square

#EFF178 #78F1B6 #7A78F1 #F178B2

split-complementary

#EFF178 #78B2F1 #B678F1

monochromatic

#D5D816 #E8EB41 #EFF178 #F6F7AF #FCFCE3

Accessibility & contrast

On white

1.20

#EFF178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.52

#EFF178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF178

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF178	#FFFFFF	#000000	##000000
##EFF178	1.00	1.20	17.52	17.52
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.52	21.00	1.00	1.00
##000000	17.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE86D

Deuteranopia (green-blind)

#FFEC7E

Tritanopia (blue-blind)

#FDE4D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #eff178;
/* rgb */ color: rgb(239, 241, 120);
/* oklch */ color: oklch(93.3% 0.144 109.7);

Tailwind

colors: {
  custom: {
    50: '#f6f5a2',
    500: '#eff178',
    950: '#000000',
  },
}

SCSS

$custom: #eff178;
$custom-light: #f6f5a2;
$custom-dark: #000000;

JSON

{
  "hex": "#eff178",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 120
  },
  "hsl": {
    "h": 60.992,
    "s": 81.208,
    "l": 70.784
  },
  "oklch": {
    "l": 0.93254,
    "c": 0.14393,
    "h": 109.7
  },
  "luminance": 0.82617
}

Semantic roles & 50–950 ramp

primary

#EFF178

secondary

#4442CB

accent

#08DE0B

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF178

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

Preview Lab → · Contrast checker → · Palette generator →