#EFF587#EFF587

#EFF587 is a very light, vivid yellow. Relative luminance 0.854; OKLCH L 94.3% C 0.134 H 111.4°. Best body text is #000000 at 18.08:1 contrast (WCAG AA passes).

Color values

HEX	#EFF587
RGB	rgb(239, 245, 135)
HSL	hsl(63, 85%, 75%)
HSV	hsv(63, 45%, 96%)
CMYK	cmyk(2.4%, 0%, 44.9%, 3.9%)
CIE-LAB	lab(94.06, -17.28, 52.00)
CIE-LCH	lch(94.06, 54.80, 108.38°)
OKLab	oklab(94.28% -0.0489 0.1246)
OKLCH	oklch(94.28% 0.134 111.4)
XYZ	xyz(72.6234, 85.4061, 35.5763)
Luminance	0.8540 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF587 #8D87F5

analogous

#F5C487 #EFF587 #B8F587

triadic

#EFF587 #87EFF5 #F587EF

tetradic

#EFF587 #87F5C4 #8D87F5 #F587B8

square

#EFF587 #87F5C4 #8D87F5 #F587B8

split-complementary

#EFF587 #87B8F5 #C487F5

monochromatic

#E0EC16 #E7F04F #EFF587 #F7FABF #FBFDE3

Accessibility & contrast

On white

1.16

#EFF587 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.08

#EFF587 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF587

18.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF587	#FFFFFF	#000000	##000000
##EFF587	1.00	1.16	18.08	18.08
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.08	21.00	1.00	1.00
##000000	18.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC7E

Deuteranopia (green-blind)

#FFF08C

Tritanopia (blue-blind)

#FCE9DB

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff587;
/* rgb */ color: rgb(239, 245, 135);
/* oklch */ color: oklch(94.3% 0.134 111.4);

Tailwind

colors: {
  custom: {
    50: '#f6f8ac',
    500: '#eff587',
    950: '#000000',
  },
}

SCSS

$custom: #eff587;
$custom-light: #f6f8ac;
$custom-dark: #000000;

JSON

{
  "hex": "#eff587",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 135
  },
  "hsl": {
    "h": 63.273,
    "s": 84.615,
    "l": 74.51
  },
  "oklch": {
    "l": 0.94275,
    "c": 0.13382,
    "h": 111.4
  },
  "luminance": 0.85405
}

Semantic roles & 50–950 ramp

primary

#EFF587

secondary

#564ED2

accent

#04E110

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFF587

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

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