#ECFF71#ECFF71

#ECFF71 is a very light, vivid yellow. Relative luminance 0.905; OKLCH L 95.9% C 0.167 H 116.0°. Best body text is #000000 at 19.11:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF71
RGB	rgb(236, 255, 113)
HSL	hsl(68, 100%, 72%)
HSV	hsv(68, 56%, 100%)
CMYK	cmyk(7.5%, 0%, 55.7%, 0%)
CIE-LAB	lab(96.22, -25.13, 64.46)
CIE-LCH	lch(96.22, 69.19, 111.30°)
OKLab	oklab(95.88% -0.0731 0.1498)
OKLCH	oklch(95.88% 0.167 116)
XYZ	xyz(73.3340, 90.5460, 29.2335)
Luminance	0.9054 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF71 #8471FF

analogous

#FFCB71 #ECFF71 #A5FF71

triadic

#ECFF71 #71ECFF #FF71EC

tetradic

#ECFF71 #71FFCB #8471FF #FF71A5

square

#ECFF71 #71FFCB #8471FF #FF71A5

split-complementary

#ECFF71 #71A5FF #CB71FF

monochromatic

#D5F600 #E4FF34 #ECFF71 #F4FFAE #FBFFE0

Accessibility & contrast

On white

1.10

#ECFF71 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.11

#ECFF71 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF71

19.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF71	#FFFFFF	#000000	##000000
##ECFF71	1.00	1.10	19.11	19.11
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.11	21.00	1.00	1.00
##000000	19.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF362

Deuteranopia (green-blind)

#FFF57A

Tritanopia (blue-blind)

#F9F2E0

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff71;
/* rgb */ color: rgb(236, 255, 113);
/* oklch */ color: oklch(95.9% 0.167 116.0);

Tailwind

colors: {
  custom: {
    50: '#f5ff9e',
    500: '#ecff71',
    950: '#000000',
  },
}

SCSS

$custom: #ecff71;
$custom-light: #f5ff9e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff71",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 113
  },
  "hsl": {
    "h": 68.028,
    "s": 100,
    "l": 72.157
  },
  "oklch": {
    "l": 0.95875,
    "c": 0.16665,
    "h": 116
  },
  "luminance": 0.90545
}

Semantic roles & 50–950 ramp

primary

#ECFF71

secondary

#4E38DC

accent

#00E61F

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECFF71

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

Preview Lab → · Contrast checker → · Palette generator →