#ECF17D#ECF17D

#ECF17D is a very light, vivid yellow. Relative luminance 0.822; OKLCH L 93.1% C 0.140 H 111.0°. Best body text is #000000 at 17.44:1 contrast (WCAG AA passes).

Color values

HEX	#ECF17D
RGB	rgb(236, 241, 125)
HSL	hsl(63, 81%, 72%)
HSV	hsv(63, 48%, 95%)
CMYK	cmyk(2.1%, 0%, 48.1%, 5.5%)
CIE-LAB	lab(92.67, -17.43, 54.96)
CIE-LCH	lch(92.67, 57.66, 107.59°)
OKLab	oklab(93.08% -0.0501 0.1304)
OKLCH	oklch(93.08% 0.14 111)
XYZ	xyz(69.7504, 82.2255, 31.5948)
Luminance	0.8222 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF17D #827DF1

analogous

#F1BC7D #ECF17D #B2F17D

triadic

#ECF17D #7DECF1 #F17DEC

tetradic

#ECF17D #7DF1BC #827DF1 #F17DB2

square

#ECF17D #7DF1BC #827DF1 #F17DB2

split-complementary

#ECF17D #7DB2F1 #BC7DF1

monochromatic

#D3DC18 #E4EB46 #ECF17D #F4F7B4 #FBFCE3

Accessibility & contrast

On white

1.20

#ECF17D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.44

#ECF17D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF17D

17.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF17D	#FFFFFF	#000000	##000000
##ECF17D	1.00	1.20	17.44	17.44
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.44	21.00	1.00	1.00
##000000	17.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE873

Deuteranopia (green-blind)

#FFEC83

Tritanopia (blue-blind)

#F9E5D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf17d;
/* rgb */ color: rgb(236, 241, 125);
/* oklch */ color: oklch(93.1% 0.140 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5a5',
    500: '#ecf17d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf17d;
$custom-light: #f4f5a5;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf17d",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 125
  },
  "hsl": {
    "h": 62.586,
    "s": 80.556,
    "l": 71.765
  },
  "oklch": {
    "l": 0.93078,
    "c": 0.13965,
    "h": 111
  },
  "luminance": 0.82224
}

Semantic roles & 50–950 ramp

primary

#ECF17D

secondary

#4C47CC

accent

#09DD12

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF17D

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

Preview Lab → · Contrast checker → · Palette generator →