#EFF398#EFF398

#EFF398 is a very light, moderate yellow. Relative luminance 0.847; OKLCH L 94.1% C 0.113 H 110.6°. Best body text is #000000 at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#EFF398
RGB	rgb(239, 243, 152)
HSL	hsl(63, 79%, 77%)
HSV	hsv(63, 37%, 95%)
CMYK	cmyk(1.6%, 0%, 37.4%, 4.7%)
CIE-LAB	lab(93.76, -14.56, 43.44)
CIE-LCH	lch(93.76, 45.81, 108.53°)
OKLab	oklab(94.11% -0.0398 0.1062)
OKLCH	oklch(94.11% 0.113 110.6)
XYZ	xyz(73.3155, 84.7201, 42.1901)
Luminance	0.8472 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF398 #9C98F3

analogous

#F3C998 #EFF398 #C2F398

triadic

#EFF398 #98EFF3 #F398EF

tetradic

#EFF398 #98F3C9 #9C98F3 #F398C2

square

#EFF398 #98F3C9 #9C98F3 #F398C2

split-complementary

#EFF398 #98C2F3 #C998F3

monochromatic

#DEE62A #E6ED61 #EFF398 #F8F9CF #FBFCE4

Accessibility & contrast

On white

1.17

#EFF398 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.94

#EFF398 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF398

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF398	#FFFFFF	#000000	##000000
##EFF398	1.00	1.17	17.94	17.94
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.94	21.00	1.00	1.00
##000000	17.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB91

Deuteranopia (green-blind)

#FFEF9C

Tritanopia (blue-blind)

#FAE9DC

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff398;
/* rgb */ color: rgb(239, 243, 152);
/* oklch */ color: oklch(94.1% 0.113 110.6);

Tailwind

colors: {
  custom: {
    50: '#f5f7b7',
    500: '#eff398',
    950: '#000000',
  },
}

SCSS

$custom: #eff398;
$custom-light: #f5f7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#eff398",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 152
  },
  "hsl": {
    "h": 62.637,
    "s": 79.13,
    "l": 77.451
  },
  "oklch": {
    "l": 0.94112,
    "c": 0.11345,
    "h": 110.6
  },
  "luminance": 0.84719
}

Semantic roles & 50–950 ramp

primary

#EFF398

secondary

#635ED1

accent

#0ADB13

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF398

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

Preview Lab → · Contrast checker → · Palette generator →