#ECFF5D#ECFF5D

#ECFF5D is a very light, vivid yellow. Relative luminance 0.901; OKLCH L 95.7% C 0.182 H 115.6°. Best body text is #000000 at 19.03:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF5D
RGB	rgb(236, 255, 93)
HSL	hsl(67, 100%, 68%)
HSV	hsv(67, 64%, 100%)
CMYK	cmyk(7.5%, 0%, 63.5%, 0%)
CIE-LAB	lab(96.06, -26.51, 72.48)
CIE-LCH	lch(96.06, 77.18, 110.09°)
OKLab	oklab(95.69% -0.0789 0.1643)
OKLCH	oklch(95.69% 0.182 115.6)
XYZ	xyz(72.3295, 90.1442, 23.9431)
Luminance	0.9014 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF5D #705DFF

analogous

#FFC15D #ECFF5D #9BFF5D

triadic

#ECFF5D #5DECFF #FF5DEC

tetradic

#ECFF5D #5DFFC1 #705DFF #FF5D9B

square

#ECFF5D #5DFFC1 #705DFF #FF5D9B

split-complementary

#ECFF5D #5D9BFF #C15DFF

monochromatic

#C7E200 #E5FF20 #ECFF5D #F3FF9A #FAFFD7

Accessibility & contrast

On white

1.10

#ECFF5D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.03

#ECFF5D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF5D

19.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF5D	#FFFFFF	#000000	##000000
##ECFF5D	1.00	1.10	19.03	19.03
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.03	21.00	1.00	1.00
##000000	19.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF347

Deuteranopia (green-blind)

#FFF568

Tritanopia (blue-blind)

#FAF1DE

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff5d;
/* rgb */ color: rgb(236, 255, 93);
/* oklch */ color: oklch(95.7% 0.182 115.6);

Tailwind

colors: {
  custom: {
    50: '#f5ff92',
    500: '#ecff5d',
    950: '#000000',
  },
}

SCSS

$custom: #ecff5d;
$custom-light: #f5ff92;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff5d",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 93
  },
  "hsl": {
    "h": 67.037,
    "s": 100,
    "l": 68.235
  },
  "oklch": {
    "l": 0.95688,
    "c": 0.18229,
    "h": 115.6
  },
  "luminance": 0.90143
}

Semantic roles & 50–950 ramp

primary

#ECFF5D

secondary

#3C27D9

accent

#00E61B

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECFF5D

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

Preview Lab → · Contrast checker → · Palette generator →