#EFF65C#EFF65C

#EFF65C is a very light, vivid yellow. Relative luminance 0.850; OKLCH L 94.0% C 0.173 H 111.8°. Best body text is #000000 at 18.01:1 contrast (WCAG AA passes).

Color values

HEX	#EFF65C
RGB	rgb(239, 246, 92)
HSL	hsl(63, 90%, 66%)
HSV	hsv(63, 63%, 96%)
CMYK	cmyk(2.8%, 0%, 62.6%, 3.5%)
CIE-LAB	lab(93.90, -21.13, 70.67)
CIE-LCH	lch(93.90, 73.76, 106.64°)
OKLab	oklab(94.01% -0.064 0.1603)
OKLCH	oklch(94.01% 0.173 111.8)
XYZ	xyz(70.4861, 85.0366, 22.8238)
Luminance	0.8504 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF65C #635CF6

analogous

#F6B05C #EFF65C #A2F65C

triadic

#EFF65C #5CEFF6 #F65CEF

tetradic

#EFF65C #5CF6B0 #635CF6 #F65CA2

square

#EFF65C #5CF6B0 #635CF6 #F65CA2

split-complementary

#EFF65C #5CA2F6 #B05CF6

monochromatic

#C4CC0B #E9F322 #EFF65C #F5F996 #FAFCD0

Accessibility & contrast

On white

1.17

#EFF65C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.01

#EFF65C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF65C

18.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF65C	#FFFFFF	#000000	##000000
##EFF65C	1.00	1.17	18.01	18.01
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.01	21.00	1.00	1.00
##000000	18.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB48

Deuteranopia (green-blind)

#FFEF66

Tritanopia (blue-blind)

#FEE8D6

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff65c;
/* rgb */ color: rgb(239, 246, 92);
/* oklch */ color: oklch(94.0% 0.173 111.8);

Tailwind

colors: {
  custom: {
    50: '#f7f991',
    500: '#eff65c',
    950: '#000000',
  },
}

SCSS

$custom: #eff65c;
$custom-light: #f7f991;
$custom-dark: #000000;

JSON

{
  "hex": "#eff65c",
  "rgb": {
    "r": 239,
    "g": 246,
    "b": 92
  },
  "hsl": {
    "h": 62.727,
    "s": 89.535,
    "l": 66.275
  },
  "oklch": {
    "l": 0.94012,
    "c": 0.17262,
    "h": 111.8
  },
  "luminance": 0.85035
}

Semantic roles & 50–950 ramp

primary

#EFF65C

secondary

#352EC8

accent

#00E60A

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF65C

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

Preview Lab → · Contrast checker → · Palette generator →