#EFFB7F#EFFB7F

#EFFB7F is a very light, vivid yellow. Relative luminance 0.889; OKLCH L 95.4% C 0.149 H 113.8°. Best body text is #000000 at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#EFFB7F
RGB	rgb(239, 251, 127)
HSL	hsl(66, 94%, 74%)
HSV	hsv(66, 49%, 98%)
CMYK	cmyk(4.8%, 0%, 49.4%, 1.6%)
CIE-LAB	lab(95.53, -20.91, 57.50)
CIE-LCH	lch(95.53, 61.18, 109.98°)
OKLab	oklab(95.42% -0.06 0.136)
OKLCH	oklch(95.42% 0.149 113.8)
XYZ	xyz(73.9258, 88.8785, 33.3355)
Luminance	0.8888 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFB7F #8B7FFB

analogous

#FBC97F #EFFB7F #B1FB7F

triadic

#EFFB7F #7FEFFB #FB7FEF

tetradic

#EFFB7F #7FFBC9 #8B7FFB #FB7FB1

square

#EFFB7F #7FFBC9 #8B7FFB #FB7FB1

split-complementary

#EFFB7F #7FB1FB #C97FFB

monochromatic

#E0F708 #E8F944 #EFFB7F #F6FDBA #FBFEE1

Accessibility & contrast

On white

1.12

#EFFB7F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.78

#EFFB7F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFB7F

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFB7F	#FFFFFF	#000000	##000000
##EFFB7F	1.00	1.12	18.78	18.78
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.78	21.00	1.00	1.00
##000000	18.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF174

Deuteranopia (green-blind)

#FFF486

Tritanopia (blue-blind)

#FCEFDF

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #effb7f;
/* rgb */ color: rgb(239, 251, 127);
/* oklch */ color: oklch(95.4% 0.149 113.8);

Tailwind

colors: {
  custom: {
    50: '#f6fca7',
    500: '#effb7f',
    950: '#000000',
  },
}

SCSS

$custom: #effb7f;
$custom-light: #f6fca7;
$custom-dark: #000000;

JSON

{
  "hex": "#effb7f",
  "rgb": {
    "r": 239,
    "g": 251,
    "b": 127
  },
  "hsl": {
    "h": 65.806,
    "s": 93.939,
    "l": 74.118
  },
  "oklch": {
    "l": 0.95419,
    "c": 0.14865,
    "h": 113.8
  },
  "luminance": 0.88877
}

Semantic roles & 50–950 ramp

primary

#EFFB7F

secondary

#5446D9

accent

#00E616

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFFB7F

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

Preview Lab → · Contrast checker → · Palette generator →