#EFF455#EFF455

#EFF455 is a very light, vivid yellow. Relative luminance 0.837; OKLCH L 93.5% C 0.176 H 111.1°. Best body text is #000000 at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#EFF455
RGB	rgb(239, 244, 85)
HSL	hsl(62, 88%, 65%)
HSV	hsv(62, 65%, 96%)
CMYK	cmyk(2%, 0%, 65.2%, 4.3%)
CIE-LAB	lab(93.32, -20.58, 72.78)
CIE-LCH	lch(93.32, 75.63, 105.79°)
OKLab	oklab(93.54% -0.0632 0.1637)
OKLCH	oklch(93.54% 0.176 111.1)
XYZ	xyz(69.5891, 83.7097, 21.0844)
Luminance	0.8371 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF455 #5A55F4

analogous

#F4AA55 #EFF455 #9FF455

triadic

#EFF455 #55EFF4 #F455EF

tetradic

#EFF455 #55F4AA #5A55F4 #F4559F

square

#EFF455 #55F4AA #5A55F4 #F4559F

split-complementary

#EFF455 #559FF4 #AA55F4

monochromatic

#BCC20D #EAF01C #EFF455 #F4F88E #FAFBC8

Accessibility & contrast

On white

1.18

#EFF455 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.74

#EFF455 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF455

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF455	#FFFFFF	#000000	##000000
##EFF455	1.00	1.18	17.74	17.74
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.74	21.00	1.00	1.00
##000000	17.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA3E

Deuteranopia (green-blind)

#FFEE60

Tritanopia (blue-blind)

#FFE6D4

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #eff455;
/* rgb */ color: rgb(239, 244, 85);
/* oklch */ color: oklch(93.5% 0.176 111.1);

Tailwind

colors: {
  custom: {
    50: '#f8f78d',
    500: '#eff455',
    950: '#000000',
  },
}

SCSS

$custom: #eff455;
$custom-light: #f8f78d;
$custom-dark: #000000;

JSON

{
  "hex": "#eff455",
  "rgb": {
    "r": 239,
    "g": 244,
    "b": 85
  },
  "hsl": {
    "h": 61.887,
    "s": 87.845,
    "l": 64.51
  },
  "oklch": {
    "l": 0.93537,
    "c": 0.17551,
    "h": 111.1
  },
  "luminance": 0.83708
}

Semantic roles & 50–950 ramp

primary

#EFF455

secondary

#322EC0

accent

#01E408

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #EFF455

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

Preview Lab → · Contrast checker → · Palette generator →