#EFF678#EFF678

#EFF678 is a very light, vivid yellow. Relative luminance 0.856; OKLCH L 94.3% C 0.149 H 111.8°. Best body text is #000000 at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#EFF678
RGB	rgb(239, 246, 120)
HSL	hsl(63, 88%, 72%)
HSV	hsv(63, 51%, 96%)
CMYK	cmyk(2.8%, 0%, 51.2%, 3.5%)
CIE-LAB	lab(94.15, -19.11, 59.05)
CIE-LCH	lch(94.15, 62.06, 107.93°)
OKLab	oklab(94.29% -0.0555 0.1388)
OKLCH	oklch(94.29% 0.149 111.8)
XYZ	xyz(71.9440, 85.6197, 30.5020)
Luminance	0.8562 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF678 #7F78F6

analogous

#F6BE78 #EFF678 #B0F678

triadic

#EFF678 #78EFF6 #F678EF

tetradic

#EFF678 #78F6BE #7F78F6 #F678B0

square

#EFF678 #78F6BE #7F78F6 #F678B0

split-complementary

#EFF678 #78B0F6 #BE78F6

monochromatic

#D9E40F #E8F23F #EFF678 #F6FAB1 #FCFDE2

Accessibility & contrast

On white

1.16

#EFF678 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.12

#EFF678 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF678

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF678	#FFFFFF	#000000	##000000
##EFF678	1.00	1.16	18.12	18.12
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.12	21.00	1.00	1.00
##000000	18.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC6C

Deuteranopia (green-blind)

#FFF07F

Tritanopia (blue-blind)

#FDE9DA

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff678;
/* rgb */ color: rgb(239, 246, 120);
/* oklch */ color: oklch(94.3% 0.149 111.8);

Tailwind

colors: {
  custom: {
    50: '#f6f9a2',
    500: '#eff678',
    950: '#000000',
  },
}

SCSS

$custom: #eff678;
$custom-light: #f6f9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#eff678",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 120
  },
  "hsl": {
    "h": 63.333,
    "s": 87.5,
    "l": 71.765
  },
  "oklch": {
    "l": 0.94293,
    "c": 0.14947,
    "h": 111.8
  },
  "luminance": 0.85618
}

Semantic roles & 50–950 ramp

primary

#EFF678

secondary

#4941D1

accent

#01E40E

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF678

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

Preview Lab → · Contrast checker → · Palette generator →