#EFF456#EFF456

#EFF456 is a very light, vivid yellow. Relative luminance 0.837; OKLCH L 93.5% C 0.175 H 111.1°. Best body text is #000000 at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#EFF456
RGB	rgb(239, 244, 86)
HSL	hsl(62, 88%, 65%)
HSV	hsv(62, 65%, 96%)
CMYK	cmyk(2%, 0%, 64.8%, 4.3%)
CIE-LAB	lab(93.33, -20.52, 72.41)
CIE-LCH	lch(93.33, 75.26, 105.82°)
OKLab	oklab(93.54% -0.0629 0.1631)
OKLCH	oklch(93.54% 0.175 111.1)
XYZ	xyz(69.6291, 83.7257, 21.2951)
Luminance	0.8372 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF456 #5B56F4

analogous

#F4AA56 #EFF456 #A0F456

triadic

#EFF456 #56EFF4 #F456EF

tetradic

#EFF456 #56F4AA #5B56F4 #F456A0

square

#EFF456 #56F4AA #5B56F4 #F456A0

split-complementary

#EFF456 #56A0F4 #AA56F4

monochromatic

#BDC30D #EAF01D #EFF456 #F4F88F #FAFBC9

Accessibility & contrast

On white

1.18

#EFF456 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.74

#EFF456 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF456

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF456	#FFFFFF	#000000	##000000
##EFF456	1.00	1.18	17.74	17.74
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.74	21.00	1.00	1.00
##000000	17.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA40

Deuteranopia (green-blind)

#FFEE61

Tritanopia (blue-blind)

#FFE6D4

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff456;
/* rgb */ color: rgb(239, 244, 86);
/* oklch */ color: oklch(93.5% 0.175 111.1);

Tailwind

colors: {
  custom: {
    50: '#f8f78d',
    500: '#eff456',
    950: '#000000',
  },
}

SCSS

$custom: #eff456;
$custom-light: #f8f78d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff456",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 86
  },
  "hsl": {
    "h": 61.899,
    "s": 87.778,
    "l": 64.706
  },
  "oklch": {
    "l": 0.93544,
    "c": 0.17482,
    "h": 111.1
  },
  "luminance": 0.83724
}

Semantic roles & 50–950 ramp

primary

#EFF456

secondary

#332EC0

accent

#01E408

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF456

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

Preview Lab → · Contrast checker → · Palette generator →