#EFF971#EFF971

#EFF971 is a very light, vivid yellow. Relative luminance 0.873; OKLCH L 94.8% C 0.159 H 112.9°. Best body text is #000000 at 18.46:1 contrast (WCAG AA passes).

Color values

HEX	#EFF971
RGB	rgb(239, 249, 113)
HSL	hsl(64, 92%, 71%)
HSV	hsv(64, 55%, 98%)
CMYK	cmyk(4%, 0%, 54.6%, 2.4%)
CIE-LAB	lab(94.86, -21.11, 62.98)
CIE-LCH	lch(94.86, 66.42, 108.53°)
OKLab	oklab(94.84% -0.0619 0.1466)
OKLCH	oklch(94.84% 0.159 112.9)
XYZ	xyz(72.4545, 87.2957, 28.6525)
Luminance	0.8729 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF971 #7B71F9

analogous

#F9BF71 #EFF971 #ABF971

triadic

#EFF971 #71EFF9 #F971EF

tetradic

#EFF971 #71F9BF #7B71F9 #F971AB

square

#EFF971 #71F9BF #7B71F9 #F971AB

split-complementary

#EFF971 #71ABF9 #BF71F9

monochromatic

#D6E60A #E8F736 #EFF971 #F6FBAC #FCFEE2

Accessibility & contrast

On white

1.14

#EFF971 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.46

#EFF971 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF971

18.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF971	#FFFFFF	#000000	##000000
##EFF971	1.00	1.14	18.46	18.46
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.46	21.00	1.00	1.00
##000000	18.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF63

Deuteranopia (green-blind)

#FFF279

Tritanopia (blue-blind)

#FDECDB

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff971;
/* rgb */ color: rgb(239, 249, 113);
/* oklch */ color: oklch(94.8% 0.159 112.9);

Tailwind

colors: {
  custom: {
    50: '#f7fb9e',
    500: '#eff971',
    950: '#000000',
  },
}

SCSS

$custom: #eff971;
$custom-light: #f7fb9e;
$custom-dark: #000000;

JSON

{
  "hex": "#eff971",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 113
  },
  "hsl": {
    "h": 64.412,
    "s": 91.892,
    "l": 70.98
  },
  "oklch": {
    "l": 0.94841,
    "c": 0.15909,
    "h": 112.9
  },
  "luminance": 0.87294
}

Semantic roles & 50–950 ramp

primary

#EFF971

secondary

#453AD4

accent

#00E611

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF971

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

Preview Lab → · Contrast checker → · Palette generator →