#EFF263#EFF263

#EFF263 is a very light, vivid yellow. Relative luminance 0.828; OKLCH L 93.2% C 0.163 H 110.3°. Best body text is #000000 at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#EFF263
RGB	rgb(239, 242, 99)
HSL	hsl(61, 85%, 67%)
HSV	hsv(61, 59%, 95%)
CMYK	cmyk(1.2%, 0%, 59.1%, 5.1%)
CIE-LAB	lab(92.91, -18.75, 66.78)
CIE-LCH	lch(92.91, 69.36, 105.69°)
OKLab	oklab(93.24% -0.0566 0.153)
OKLCH	oklch(93.24% 0.163 110.3)
XYZ	xyz(69.6028, 82.7576, 24.1093)
Luminance	0.8276 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF263 #6663F2

analogous

#F2AE63 #EFF263 #A8F263

triadic

#EFF263 #63EFF2 #F263EF

tetradic

#EFF263 #63F2AE #6663F2 #F263A8

square

#EFF263 #63F2AE #6663F2 #F263A8

split-complementary

#EFF263 #63A8F2 #AE63F2

monochromatic

#C6CA11 #E9ED2B #EFF263 #F5F79B #FBFBD4

Accessibility & contrast

On white

1.20

#EFF263 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.55

#EFF263 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF263

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF263	#FFFFFF	#000000	##000000
##EFF263	1.00	1.20	17.55	17.55
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.55	21.00	1.00	1.00
##000000	17.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE852

Deuteranopia (green-blind)

#FFED6C

Tritanopia (blue-blind)

#FEE4D4

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff263;
/* rgb */ color: rgb(239, 242, 99);
/* oklch */ color: oklch(93.2% 0.163 110.3);

Tailwind

colors: {
  custom: {
    50: '#f7f695',
    500: '#eff263',
    950: '#000000',
  },
}

SCSS

$custom: #eff263;
$custom-light: #f7f695;
$custom-dark: #000000;

JSON

{
  "hex": "#eff263",
  "rgb": {
    "r": 239,
    "g": 242,
    "b": 99
  },
  "hsl": {
    "h": 61.259,
    "s": 84.615,
    "l": 66.863
  },
  "oklch": {
    "l": 0.93239,
    "c": 0.16316,
    "h": 110.3
  },
  "luminance": 0.82756
}

Semantic roles & 50–950 ramp

primary

#EFF263

secondary

#3633C6

accent

#04E109

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF263

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

Preview Lab → · Contrast checker → · Palette generator →