#EFF390#EFF390

#EFF390 is a very light, vivid yellow. Relative luminance 0.845; OKLCH L 94.0% C 0.122 H 110.5°. Best body text is #000000 at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#EFF390
RGB	rgb(239, 243, 144)
HSL	hsl(62, 80%, 76%)
HSV	hsv(62, 41%, 95%)
CMYK	cmyk(1.6%, 0%, 40.7%, 4.7%)
CIE-LAB	lab(93.65, -15.41, 47.20)
CIE-LCH	lch(93.65, 49.65, 108.09°)
OKLab	oklab(93.99% -0.0428 0.1144)
OKLCH	oklch(93.99% 0.122 110.5)
XYZ	xyz(72.6822, 84.4668, 38.8551)
Luminance	0.8447 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF390 #9490F3

analogous

#F3C590 #EFF390 #BDF390

triadic

#EFF390 #90EFF3 #F390EF

tetradic

#EFF390 #90F3C5 #9490F3 #F390BD

square

#EFF390 #90F3C5 #9490F3 #F390BD

split-complementary

#EFF390 #90BDF3 #C590F3

monochromatic

#DFE722 #E7ED59 #EFF390 #F7F9C7 #FBFCE3

Accessibility & contrast

On white

1.17

#EFF390 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.89

#EFF390 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF390

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF390	#FFFFFF	#000000	##000000
##EFF390	1.00	1.17	17.89	17.89
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.89	21.00	1.00	1.00
##000000	17.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB88

Deuteranopia (green-blind)

#FFEE95

Tritanopia (blue-blind)

#FBE8DB

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #eff390;
/* rgb */ color: rgb(239, 243, 144);
/* oklch */ color: oklch(94.0% 0.122 110.5);

Tailwind

colors: {
  custom: {
    50: '#f6f7b2',
    500: '#eff390',
    950: '#000000',
  },
}

SCSS

$custom: #eff390;
$custom-light: #f6f7b2;
$custom-dark: #000000;

JSON

{
  "hex": "#eff390",
  "rgb": {
    "r": 239,
    "g": 243,
    "b": 144
  },
  "hsl": {
    "h": 62.424,
    "s": 80.488,
    "l": 75.882
  },
  "oklch": {
    "l": 0.93989,
    "c": 0.12212,
    "h": 110.5
  },
  "luminance": 0.84466
}

Semantic roles & 50–950 ramp

primary

#EFF390

secondary

#5C57D0

accent

#09DD11

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF390

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

Preview Lab → · Contrast checker → · Palette generator →