#EFF97B#EFF97B

#EFF97B is a very light, vivid yellow. Relative luminance 0.875; OKLCH L 95.0% C 0.150 H 113.0°. Best body text is #000000 at 18.51:1 contrast (WCAG AA passes).

Color values

HEX	#EFF97B
RGB	rgb(239, 249, 123)
HSL	hsl(65, 91%, 73%)
HSV	hsv(65, 51%, 98%)
CMYK	cmyk(4%, 0%, 50.6%, 2.4%)
CIE-LAB	lab(94.96, -20.30, 58.65)
CIE-LCH	lch(94.96, 62.06, 109.09°)
OKLab	oklab(94.95% -0.0586 0.1382)
OKLCH	oklch(94.95% 0.15 113)
XYZ	xyz(73.0488, 87.5334, 31.7826)
Luminance	0.8753 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF97B #857BF9

analogous

#F9C47B #EFF97B #B0F97B

triadic

#EFF97B #7BEFF9 #F97BEF

tetradic

#EFF97B #7BF9C4 #857BF9 #F97BB0

square

#EFF97B #7BF9C4 #857BF9 #F97BB0

split-complementary

#EFF97B #7BB0F9 #C47BF9

monochromatic

#DDEF0B #E8F640 #EFF97B #F6FCB6 #FBFEE2

Accessibility & contrast

On white

1.13

#EFF97B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.51

#EFF97B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF97B

18.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF97B	#FFFFFF	#000000	##000000
##EFF97B	1.00	1.13	18.51	18.51
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.51	21.00	1.00	1.00
##000000	18.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF6F

Deuteranopia (green-blind)

#FFF282

Tritanopia (blue-blind)

#FCEDDC

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff97b;
/* rgb */ color: rgb(239, 249, 123);
/* oklch */ color: oklch(95.0% 0.150 113.0);

Tailwind

colors: {
  custom: {
    50: '#f6fba4',
    500: '#eff97b',
    950: '#000000',
  },
}

SCSS

$custom: #eff97b;
$custom-light: #f6fba4;
$custom-dark: #000000;

JSON

{
  "hex": "#eff97b",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 123
  },
  "hsl": {
    "h": 64.762,
    "s": 91.304,
    "l": 72.941
  },
  "oklch": {
    "l": 0.94954,
    "c": 0.1501,
    "h": 113
  },
  "luminance": 0.87532
}

Semantic roles & 50–950 ramp

primary

#EFF97B

secondary

#4E43D6

accent

#00E612

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #EFF97B

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

Preview Lab → · Contrast checker → · Palette generator →