#EFF677#EFF677

#EFF677 is a very light, vivid yellow. Relative luminance 0.856; OKLCH L 94.3% C 0.150 H 111.8°. Best body text is #000000 at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#EFF677
RGB	rgb(239, 246, 119)
HSL	hsl(63, 88%, 72%)
HSV	hsv(63, 52%, 96%)
CMYK	cmyk(2.8%, 0%, 51.6%, 3.5%)
CIE-LAB	lab(94.14, -19.19, 59.49)
CIE-LCH	lch(94.14, 62.51, 107.88°)
OKLab	oklab(94.28% -0.0558 0.1396)
OKLCH	oklch(94.28% 0.15 111.8)
XYZ	xyz(71.8837, 85.5956, 30.1841)
Luminance	0.8559 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF677 #7E77F6

analogous

#F6BE77 #EFF677 #B0F677

triadic

#EFF677 #77EFF6 #F677EF

tetradic

#EFF677 #77F6BE #7E77F6 #F677B0

square

#EFF677 #77F6BE #7E77F6 #F677B0

split-complementary

#EFF677 #77B0F6 #BE77F6

monochromatic

#D8E40F #E8F23E #EFF677 #F6FAB0 #FCFDE2

Accessibility & contrast

On white

1.16

#EFF677 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.12

#EFF677 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF677

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF677	#FFFFFF	#000000	##000000
##EFF677	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)

#FFEC6B

Deuteranopia (green-blind)

#FFF07E

Tritanopia (blue-blind)

#FDE9D9

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff677;
/* rgb */ color: rgb(239, 246, 119);
/* oklch */ color: oklch(94.3% 0.150 111.8);

Tailwind

colors: {
  custom: {
    50: '#f6f9a1',
    500: '#eff677',
    950: '#000000',
  },
}

SCSS

$custom: #eff677;
$custom-light: #f6f9a1;
$custom-dark: #000000;

JSON

{
  "hex": "#eff677",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 119
  },
  "hsl": {
    "h": 63.307,
    "s": 87.586,
    "l": 71.569
  },
  "oklch": {
    "l": 0.94281,
    "c": 0.15039,
    "h": 111.8
  },
  "luminance": 0.85594
}

Semantic roles & 50–950 ramp

primary

#EFF677

secondary

#4840D1

accent

#01E40E

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF677

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

Preview Lab → · Contrast checker → · Palette generator →