#EFF04D#EFF04D

#EFF04D 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	#EFF04D
RGB	rgb(239, 240, 77)
HSL	hsl(60, 84%, 62%)
HSV	hsv(60, 68%, 94%)
CMYK	cmyk(0.4%, 0%, 67.9%, 5.9%)
CIE-LAB	lab(92.22, -19.08, 74.62)
CIE-LCH	lch(92.22, 77.02, 104.34°)
OKLab	oklab(92.64% -0.0597 0.1664)
OKLCH	oklch(92.64% 0.177 109.8)
XYZ	xyz(68.0986, 81.2087, 19.1074)
Luminance	0.8121 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF04D #4E4DF0

analogous

#F0A04D #EFF04D #9EF04D

triadic

#EFF04D #4DEFF0 #F04DEF

tetradic

#EFF04D #4DF0A0 #4E4DF0 #F04D9E

square

#EFF04D #4DF0A0 #4E4DF0 #F04D9E

split-complementary

#EFF04D #4D9EF0 #A04DF0

monochromatic

#B2B30F #EAEB15 #EFF04D #F4F585 #F9FABE

Accessibility & contrast

On white

1.22

#EFF04D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.24

#EFF04D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF04D

17.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF04D	#FFFFFF	#000000	##000000
##EFF04D	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)

#FFE633

Deuteranopia (green-blind)

#FFEB59

Tritanopia (blue-blind)

#FFE1D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff04d;
/* rgb */ color: rgb(239, 240, 77);
/* oklch */ color: oklch(92.6% 0.177 109.8);

Tailwind

colors: {
  custom: {
    50: '#f8f488',
    500: '#eff04d',
    950: '#000000',
  },
}

SCSS

$custom: #eff04d;
$custom-light: #f8f488;
$custom-dark: #000000;

JSON

{
  "hex": "#eff04d",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 77
  },
  "hsl": {
    "h": 60.368,
    "s": 84.456,
    "l": 62.157
  },
  "oklch": {
    "l": 0.92641,
    "c": 0.17676,
    "h": 109.8
  },
  "luminance": 0.81207
}

Semantic roles & 50–950 ramp

primary

#EFF04D

secondary

#2F2EB3

accent

#05E106

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #EFF04D

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

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