#ECFD5D#ECFD5D

#ECFD5D is a very light, vivid yellow. Relative luminance 0.889; OKLCH L 95.3% C 0.180 H 115.0°. Best body text is #000000 at 18.77:1 contrast (WCAG AA passes).

Color values

HEX	#ECFD5D
RGB	rgb(236, 253, 93)
HSL	hsl(66, 98%, 68%)
HSV	hsv(66, 63%, 99%)
CMYK	cmyk(6.7%, 0%, 63.2%, 0.8%)
CIE-LAB	lab(95.53, -25.58, 71.93)
CIE-LCH	lch(95.53, 76.34, 109.57°)
OKLab	oklab(95.26% -0.0762 0.1632)
OKLCH	oklch(95.26% 0.18 115)
XYZ	xyz(71.6948, 88.8749, 23.7316)
Luminance	0.8887 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFD5D #6E5DFD

analogous

#FDBE5D #ECFD5D #9CFD5D

triadic

#ECFD5D #5DECFD #FD5DEC

tetradic

#ECFD5D #5DFDBE #6E5DFD #FD5D9C

square

#ECFD5D #5DFDBE #6E5DFD #FD5D9C

split-complementary

#ECFD5D #5D9CFD #BE5DFD

monochromatic

#C6DD03 #E5FC21 #ECFD5D #F3FE99 #FAFED6

Accessibility & contrast

On white

1.12

#ECFD5D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.77

#ECFD5D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFD5D

18.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFD5D	#FFFFFF	#000000	##000000
##ECFD5D	1.00	1.12	18.77	18.77
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.77	21.00	1.00	1.00
##000000	18.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF148

Deuteranopia (green-blind)

#FFF468

Tritanopia (blue-blind)

#FAEFDC

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfd5d;
/* rgb */ color: rgb(236, 253, 93);
/* oklch */ color: oklch(95.3% 0.180 115.0);

Tailwind

colors: {
  custom: {
    50: '#f5fe92',
    500: '#ecfd5d',
    950: '#000000',
  },
}

SCSS

$custom: #ecfd5d;
$custom-light: #f5fe92;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfd5d",
  "rgb": {
    "r": 236,
    "g": 253,
    "b": 93
  },
  "hsl": {
    "h": 66.375,
    "s": 97.561,
    "l": 67.843
  },
  "oklch": {
    "l": 0.95264,
    "c": 0.18011,
    "h": 115
  },
  "luminance": 0.88874
}

Semantic roles & 50–950 ramp

primary

#ECFD5D

secondary

#3B28D6

accent

#00E618

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECFD5D

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

Preview Lab → · Contrast checker → · Palette generator →