#EFF04C#EFF04C

#EFF04C is a very light, vivid yellow. Relative luminance 0.812; OKLCH L 92.6% C 0.177 H 109.8°. Best body text is #000000 at 17.24:1 contrast (WCAG AA passes).

Color values

HEX	#EFF04C
RGB	rgb(239, 240, 76)
HSL	hsl(60, 85%, 62%)
HSV	hsv(60, 68%, 94%)
CMYK	cmyk(0.4%, 0%, 68.3%, 5.9%)
CIE-LAB	lab(92.22, -19.13, 74.97)
CIE-LCH	lch(92.22, 77.37, 104.31°)
OKLab	oklab(92.63% -0.06 0.1669)
OKLCH	oklch(92.63% 0.177 109.8)
XYZ	xyz(68.0635, 81.1946, 18.9228)
Luminance	0.8119 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF04C #4D4CF0

analogous

#F09F4C #EFF04C #9DF04C

triadic

#EFF04C #4CEFF0 #F04CEF

tetradic

#EFF04C #4CF09F #4D4CF0 #F04C9D

square

#EFF04C #4CF09F #4D4CF0 #F04C9D

split-complementary

#EFF04C #4C9DF0 #9F4CF0

monochromatic

#B2B30F #EAEB14 #EFF04C #F4F584 #F9F9BD

Accessibility & contrast

On white

1.22

#EFF04C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.24

#EFF04C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF04C

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF04C	#FFFFFF	#000000	##000000
##EFF04C	1.00	1.22	17.24	17.24
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.24	21.00	1.00	1.00
##000000	17.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE631

Deuteranopia (green-blind)

#FFEB58

Tritanopia (blue-blind)

#FFE1D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff04c;
/* rgb */ color: rgb(239, 240, 76);
/* oklch */ color: oklch(92.6% 0.177 109.8);

Tailwind

colors: {
  custom: {
    50: '#f8f488',
    500: '#eff04c',
    950: '#000000',
  },
}

SCSS

$custom: #eff04c;
$custom-light: #f8f488;
$custom-dark: #000000;

JSON

{
  "hex": "#eff04c",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 76
  },
  "hsl": {
    "h": 60.366,
    "s": 84.536,
    "l": 61.961
  },
  "oklch": {
    "l": 0.92634,
    "c": 0.17738,
    "h": 109.8
  },
  "luminance": 0.81193
}

Semantic roles & 50–950 ramp

primary

#EFF04C

secondary

#2F2EB2

accent

#04E106

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #EFF04C

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

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