#ECF17C#ECF17C

#ECF17C is a very light, vivid yellow. Relative luminance 0.822; OKLCH L 93.1% C 0.141 H 111.0°. Best body text is #000000 at 17.44:1 contrast (WCAG AA passes).

Color values

HEX	#ECF17C
RGB	rgb(236, 241, 124)
HSL	hsl(63, 81%, 72%)
HSV	hsv(63, 49%, 95%)
CMYK	cmyk(2.1%, 0%, 48.5%, 5.5%)
CIE-LAB	lab(92.66, -17.52, 55.41)
CIE-LCH	lch(92.66, 58.11, 107.54°)
OKLab	oklab(93.07% -0.0504 0.1313)
OKLCH	oklch(93.07% 0.141 111)
XYZ	xyz(69.6868, 82.2001, 31.2601)
Luminance	0.8220 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF17C #817CF1

analogous

#F1BC7C #ECF17C #B2F17C

triadic

#ECF17C #7CECF1 #F17CEC

tetradic

#ECF17C #7CF1BC #817CF1 #F17CB2

square

#ECF17C #7CF1BC #817CF1 #F17CB2

split-complementary

#ECF17C #7CB2F1 #BC7CF1

monochromatic

#D3DB17 #E4EB45 #ECF17C #F4F7B3 #FBFCE3

Accessibility & contrast

On white

1.20

#ECF17C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.44

#ECF17C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF17C

17.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF17C	#FFFFFF	#000000	##000000
##ECF17C	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)

#FFE871

Deuteranopia (green-blind)

#FFEC82

Tritanopia (blue-blind)

#F9E5D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf17c;
/* rgb */ color: rgb(236, 241, 124);
/* oklch */ color: oklch(93.1% 0.141 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5a4',
    500: '#ecf17c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf17c;
$custom-light: #f4f5a4;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf17c",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 124
  },
  "hsl": {
    "h": 62.564,
    "s": 80.69,
    "l": 71.569
  },
  "oklch": {
    "l": 0.93066,
    "c": 0.14062,
    "h": 111
  },
  "luminance": 0.82199
}

Semantic roles & 50–950 ramp

primary

#ECF17C

secondary

#4B46CB

accent

#08DD12

background

#FFFFFC

surface

#FFFEF6

border

#D7D6D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF17C

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

Preview Lab → · Contrast checker → · Palette generator →