#EFF05C#EFF05C

#EFF05C is a very light, vivid yellow. Relative luminance 0.814; OKLCH L 92.8% C 0.166 H 109.6°. Best body text is #000000 at 17.29:1 contrast (WCAG AA passes).

Color values

HEX	#EFF05C
RGB	rgb(239, 240, 92)
HSL	hsl(60, 83%, 65%)
HSV	hsv(60, 62%, 94%)
CMYK	cmyk(0.4%, 0%, 61.7%, 5.9%)
CIE-LAB	lab(92.33, -18.24, 69.02)
CIE-LCH	lch(92.33, 71.39, 104.80°)
OKLab	oklab(92.76% -0.0559 0.1568)
OKLCH	oklch(92.76% 0.166 109.6)
XYZ	xyz(68.6906, 81.4455, 22.2253)
Luminance	0.8144 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF05C #5D5CF0

analogous

#F0A75C #EFF05C #A5F05C

triadic

#EFF05C #5CEFF0 #F05CEF

tetradic

#EFF05C #5CF0A7 #5D5CF0 #F05CA5

square

#EFF05C #5CF0A7 #5D5CF0 #F05CA5

split-complementary

#EFF05C #5CA5F0 #A75CF0

monochromatic

#BFC012 #EAEB24 #EFF05C #F5F594 #FAFACC

Accessibility & contrast

On white

1.21

#EFF05C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.29

#EFF05C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF05C

17.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF05C	#FFFFFF	#000000	##000000
##EFF05C	1.00	1.21	17.29	17.29
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.29	21.00	1.00	1.00
##000000	17.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE649

Deuteranopia (green-blind)

#FFEB65

Tritanopia (blue-blind)

#FFE2D1

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff05c;
/* rgb */ color: rgb(239, 240, 92);
/* oklch */ color: oklch(92.8% 0.166 109.6);

Tailwind

colors: {
  custom: {
    50: '#f7f491',
    500: '#eff05c',
    950: '#000000',
  },
}

SCSS

$custom: #eff05c;
$custom-light: #f7f491;
$custom-dark: #000000;

JSON

{
  "hex": "#eff05c",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 92
  },
  "hsl": {
    "h": 60.405,
    "s": 83.146,
    "l": 65.098
  },
  "oklch": {
    "l": 0.92759,
    "c": 0.16647,
    "h": 109.6
  },
  "luminance": 0.81444
}

Semantic roles & 50–950 ramp

primary

#EFF05C

secondary

#3332BE

accent

#06E007

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF05C

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

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