#EFF58E#EFF58E

#EFF58E is a very light, vivid yellow. Relative luminance 0.856; OKLCH L 94.4% C 0.127 H 111.5°. Best body text is #000000 at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#EFF58E
RGB	rgb(239, 245, 142)
HSL	hsl(63, 84%, 76%)
HSV	hsv(63, 42%, 96%)
CMYK	cmyk(2.4%, 0%, 42%, 3.9%)
CIE-LAB	lab(94.15, -16.59, 48.78)
CIE-LCH	lch(94.15, 51.52, 108.79°)
OKLab	oklab(94.37% -0.0464 0.1178)
OKLCH	oklch(94.37% 0.127 111.5)
XYZ	xyz(73.1325, 85.6098, 38.2577)
Luminance	0.8561 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF58E #948EF5

analogous

#F5C78E #EFF58E #BBF58E

triadic

#EFF58E #8EEFF5 #F58EEF

tetradic

#EFF58E #8EF5C7 #948EF5 #F58EBB

square

#EFF58E #8EF5C7 #948EF5 #F58EBB

split-complementary

#EFF58E #8EBBF5 #C78EF5

monochromatic

#DFEB1E #E7F056 #EFF58E #F7FAC6 #FBFDE3

Accessibility & contrast

On white

1.16

#EFF58E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.12

#EFF58E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF58E

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF58E	#FFFFFF	#000000	##000000
##EFF58E	1.00	1.16	18.12	18.12
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.12	21.00	1.00	1.00
##000000	18.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED86

Deuteranopia (green-blind)

#FFF093

Tritanopia (blue-blind)

#FBEADC

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #eff58e;
/* rgb */ color: rgb(239, 245, 142);
/* oklch */ color: oklch(94.4% 0.127 111.5);

Tailwind

colors: {
  custom: {
    50: '#f6f8b1',
    500: '#eff58e',
    950: '#000000',
  },
}

SCSS

$custom: #eff58e;
$custom-light: #f6f8b1;
$custom-dark: #000000;

JSON

{
  "hex": "#eff58e",
  "rgb": {
    "r": 239,
    "g": 245,
    "b": 142
  },
  "hsl": {
    "h": 63.495,
    "s": 83.74,
    "l": 75.882
  },
  "oklch": {
    "l": 0.94373,
    "c": 0.1266,
    "h": 111.5
  },
  "luminance": 0.85609
}

Semantic roles & 50–950 ramp

primary

#EFF58E

secondary

#5C55D3

accent

#05E012

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF58E

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

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