#EFF973#EFF973

#EFF973 is a very light, vivid yellow. Relative luminance 0.873; OKLCH L 94.9% C 0.157 H 112.9°. Best body text is #000000 at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#EFF973
RGB	rgb(239, 249, 115)
HSL	hsl(64, 92%, 71%)
HSV	hsv(64, 54%, 98%)
CMYK	cmyk(4%, 0%, 53.8%, 2.4%)
CIE-LAB	lab(94.88, -20.95, 62.13)
CIE-LCH	lch(94.88, 65.56, 108.64°)
OKLab	oklab(94.86% -0.0612 0.1449)
OKLCH	oklch(94.86% 0.157 112.9)
XYZ	xyz(72.5683, 87.3412, 29.2521)
Luminance	0.8734 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF973 #7D73F9

analogous

#F9C073 #EFF973 #ACF973

triadic

#EFF973 #73EFF9 #F973EF

tetradic

#EFF973 #73F9C0 #7D73F9 #F973AC

square

#EFF973 #73F9C0 #7D73F9 #F973AC

split-complementary

#EFF973 #73ACF9 #C073F9

monochromatic

#D7E80A #E8F638 #EFF973 #F6FCAE #FCFEE2

Accessibility & contrast

On white

1.14

#EFF973 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.47

#EFF973 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF973

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF973	#FFFFFF	#000000	##000000
##EFF973	1.00	1.14	18.47	18.47
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.47	21.00	1.00	1.00
##000000	18.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF65

Deuteranopia (green-blind)

#FFF27B

Tritanopia (blue-blind)

#FDECDB

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff973;
/* rgb */ color: rgb(239, 249, 115);
/* oklch */ color: oklch(94.9% 0.157 112.9);

Tailwind

colors: {
  custom: {
    50: '#f7fb9f',
    500: '#eff973',
    950: '#000000',
  },
}

SCSS

$custom: #eff973;
$custom-light: #f7fb9f;
$custom-dark: #000000;

JSON

{
  "hex": "#eff973",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 115
  },
  "hsl": {
    "h": 64.478,
    "s": 91.781,
    "l": 71.373
  },
  "oklch": {
    "l": 0.94862,
    "c": 0.15734,
    "h": 112.9
  },
  "luminance": 0.8734
}

Semantic roles & 50–950 ramp

primary

#EFF973

secondary

#473CD4

accent

#00E611

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF973

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

Preview Lab → · Contrast checker → · Palette generator →