#EFF154#EFF154

#EFF154 is a very light, vivid yellow. Relative luminance 0.819; OKLCH L 92.9% C 0.173 H 110.1°. Best body text is #000000 at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#EFF154
RGB	rgb(239, 241, 84)
HSL	hsl(61, 85%, 64%)
HSV	hsv(61, 65%, 95%)
CMYK	cmyk(0.8%, 0%, 65.1%, 5.5%)
CIE-LAB	lab(92.53, -19.19, 72.35)
CIE-LCH	lch(92.53, 74.85, 104.86°)
OKLab	oklab(92.9% -0.0594 0.1627)
OKLCH	oklch(92.9% 0.173 110.1)
XYZ	xyz(68.6543, 81.9033, 20.5782)
Luminance	0.8190 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF154 #5654F1

analogous

#F1A454 #EFF154 #A0F154

triadic

#EFF154 #54EFF1 #F154EF

tetradic

#EFF154 #54F1A4 #5654F1 #F154A0

square

#EFF154 #54F1A4 #5654F1 #F154A0

split-complementary

#EFF154 #54A0F1 #A454F1

monochromatic

#B9BB0F #EAEC1B #EFF154 #F4F68D #FAFAC5

Accessibility & contrast

On white

1.21

#EFF154 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.38

#EFF154 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF154

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF154	#FFFFFF	#000000	##000000
##EFF154	1.00	1.21	17.38	17.38
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.38	21.00	1.00	1.00
##000000	17.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE73E

Deuteranopia (green-blind)

#FFEC5F

Tritanopia (blue-blind)

#FFE2D1

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #eff154;
/* rgb */ color: rgb(239, 241, 84);
/* oklch */ color: oklch(92.9% 0.173 110.1);

Tailwind

colors: {
  custom: {
    50: '#f8f58c',
    500: '#eff154',
    950: '#000000',
  },
}

SCSS

$custom: #eff154;
$custom-light: #f8f58c;
$custom-dark: #000000;

JSON

{
  "hex": "#eff154",
  "rgb": {
    "r": 239,
    "g": 241,
    "b": 84
  },
  "hsl": {
    "h": 60.764,
    "s": 84.865,
    "l": 63.725
  },
  "oklch": {
    "l": 0.92902,
    "c": 0.17317,
    "h": 110.1
  },
  "luminance": 0.81901
}

Semantic roles & 50–950 ramp

primary

#EFF154

secondary

#312FBA

accent

#04E107

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF154

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

Preview Lab → · Contrast checker → · Palette generator →