#EFF054#EFF054

#EFF054 is a very light, vivid yellow. Relative luminance 0.813; OKLCH L 92.7% C 0.172 H 109.7°. Best body text is #000000 at 17.26:1 contrast (WCAG AA passes).

Color values

HEX	#EFF054
RGB	rgb(239, 240, 84)
HSL	hsl(60, 84%, 64%)
HSV	hsv(60, 65%, 94%)
CMYK	cmyk(0.4%, 0%, 65%, 5.9%)
CIE-LAB	lab(92.27, -18.71, 72.08)
CIE-LCH	lch(92.27, 74.47, 104.55°)
OKLab	oklab(92.69% -0.058 0.1621)
OKLCH	oklch(92.69% 0.172 109.7)
XYZ	xyz(68.3592, 81.3129, 20.4798)
Luminance	0.8131 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF054 #5554F0

analogous

#F0A354 #EFF054 #A1F054

triadic

#EFF054 #54EFF0 #F054EF

tetradic

#EFF054 #54F0A3 #5554F0 #F054A1

square

#EFF054 #54F0A3 #5554F0 #F054A1

split-complementary

#EFF054 #54A1F0 #A354F0

monochromatic

#B8B910 #EAEB1C #EFF054 #F4F58C #FAFAC5

Accessibility & contrast

On white

1.22

#EFF054 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.26

#EFF054 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF054

17.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF054	#FFFFFF	#000000	##000000
##EFF054	1.00	1.22	17.26	17.26
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.26	21.00	1.00	1.00
##000000	17.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE63E

Deuteranopia (green-blind)

#FFEB5E

Tritanopia (blue-blind)

#FFE1D0

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #eff054;
/* rgb */ color: rgb(239, 240, 84);
/* oklch */ color: oklch(92.7% 0.172 109.7);

Tailwind

colors: {
  custom: {
    50: '#f8f48c',
    500: '#eff054',
    950: '#000000',
  },
}

SCSS

$custom: #eff054;
$custom-light: #f8f48c;
$custom-dark: #000000;

JSON

{
  "hex": "#eff054",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 84
  },
  "hsl": {
    "h": 60.385,
    "s": 83.871,
    "l": 63.529
  },
  "oklch": {
    "l": 0.92693,
    "c": 0.17218,
    "h": 109.7
  },
  "luminance": 0.81311
}

Semantic roles & 50–950 ramp

primary

#EFF054

secondary

#3130B8

accent

#05E007

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF054

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

Preview Lab → · Contrast checker → · Palette generator →