#EFF450#EFF450

#EFF450 is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.5% C 0.179 H 111.1°. Best body text is #000000 at 17.73:1 contrast (WCAG AA passes).

Color values

HEX	#EFF450
RGB	rgb(239, 244, 80)
HSL	hsl(62, 88%, 64%)
HSV	hsv(62, 67%, 96%)
CMYK	cmyk(2%, 0%, 67.2%, 4.3%)
CIE-LAB	lab(93.29, -20.85, 74.60)
CIE-LCH	lch(93.29, 77.46, 105.61°)
OKLab	oklab(93.5% -0.0644 0.1668)
OKLCH	oklch(93.5% 0.179 111.1)
XYZ	xyz(69.3975, 83.6330, 20.0750)
Luminance	0.8363 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF450 #5550F4

analogous

#F4A750 #EFF450 #9DF450

triadic

#EFF450 #50EFF4 #F450EF

tetradic

#EFF450 #50F4A7 #5550F4 #F4509D

square

#EFF450 #50F4A7 #5550F4 #F4509D

split-complementary

#EFF450 #509DF4 #A750F4

monochromatic

#B8BE0C #EAF016 #EFF450 #F4F88A #FAFBC3

Accessibility & contrast

On white

1.18

#EFF450 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.73

#EFF450 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF450

17.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF450	#FFFFFF	#000000	##000000
##EFF450	1.00	1.18	17.73	17.73
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.73	21.00	1.00	1.00
##000000	17.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE936

Deuteranopia (green-blind)

#FFEE5C

Tritanopia (blue-blind)

#FFE5D3

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff450;
/* rgb */ color: rgb(239, 244, 80);
/* oklch */ color: oklch(93.5% 0.179 111.1);

Tailwind

colors: {
  custom: {
    50: '#f8f78a',
    500: '#eff450',
    950: '#000000',
  },
}

SCSS

$custom: #eff450;
$custom-light: #f8f78a;
$custom-dark: #000000;

JSON

{
  "hex": "#eff450",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 80
  },
  "hsl": {
    "h": 61.829,
    "s": 88.172,
    "l": 63.529
  },
  "oklch": {
    "l": 0.93499,
    "c": 0.1788,
    "h": 111.1
  },
  "luminance": 0.83631
}

Semantic roles & 50–950 ramp

primary

#EFF450

secondary

#312CBC

accent

#01E508

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #EFF450

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

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