#ECF16C#ECF16C

#ECF16C is a very light, vivid yellow. Relative luminance 0.818; OKLCH L 92.9% C 0.155 H 111.0°. Best body text is #000000 at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#ECF16C
RGB	rgb(236, 241, 108)
HSL	hsl(62, 83%, 68%)
HSV	hsv(62, 55%, 95%)
CMYK	cmyk(2.1%, 0%, 55.2%, 5.5%)
CIE-LAB	lab(92.50, -18.82, 62.42)
CIE-LCH	lch(92.50, 65.20, 106.78°)
OKLab	oklab(92.88% -0.0557 0.1449)
OKLCH	oklch(92.88% 0.155 111)
XYZ	xyz(68.7558, 81.8277, 26.3569)
Luminance	0.8183 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF16C #716CF1

analogous

#F1B36C #ECF16C #A9F16C

triadic

#ECF16C #6CECF1 #F16CEC

tetradic

#ECF16C #6CF1B3 #716CF1 #F16CA9

square

#ECF16C #6CF1B3 #716CF1 #F16CA9

split-complementary

#ECF16C #6CA9F1 #B36CF1

monochromatic

#C8CF14 #E5EC34 #ECF16C #F3F6A4 #FAFCDC

Accessibility & contrast

On white

1.21

#ECF16C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.37

#ECF16C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF16C

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF16C	#FFFFFF	#000000	##000000
##ECF16C	1.00	1.21	17.37	17.37
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.37	21.00	1.00	1.00
##000000	17.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE75E

Deuteranopia (green-blind)

#FFEB74

Tritanopia (blue-blind)

#FAE4D4

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #ecf16c;
/* rgb */ color: rgb(236, 241, 108);
/* oklch */ color: oklch(92.9% 0.155 111.0);

Tailwind

colors: {
  custom: {
    50: '#f5f59a',
    500: '#ecf16c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf16c;
$custom-light: #f5f59a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf16c",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 108
  },
  "hsl": {
    "h": 62.256,
    "s": 82.609,
    "l": 68.431
  },
  "oklch": {
    "l": 0.92882,
    "c": 0.15522,
    "h": 111
  },
  "luminance": 0.81826
}

Semantic roles & 50–950 ramp

primary

#ECF16C

secondary

#3D38CA

accent

#06DF0F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF16C

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

Preview Lab → · Contrast checker → · Palette generator →