#ECF665#ECF665

#ECF665 is a very light, vivid yellow. Relative luminance 0.847; OKLCH L 93.9% C 0.166 H 112.9°. Best body text is #000000 at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#ECF665
RGB	rgb(236, 246, 101)
HSL	hsl(64, 89%, 68%)
HSV	hsv(64, 59%, 96%)
CMYK	cmyk(4.1%, 0%, 58.9%, 3.5%)
CIE-LAB	lab(93.75, -21.73, 66.80)
CIE-LCH	lch(93.75, 70.24, 108.02°)
OKLab	oklab(93.86% -0.0647 0.1534)
OKLCH	oklch(93.86% 0.166 112.9)
XYZ	xyz(69.8985, 84.6854, 24.9732)
Luminance	0.8468 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF665 #6F65F6

analogous

#F6B765 #ECF665 #A3F665

triadic

#ECF665 #65ECF6 #F665EC

tetradic

#ECF665 #65F6B7 #6F65F6 #F665A3

square

#ECF665 #65F6B7 #6F65F6 #F665A3

split-complementary

#ECF665 #65A3F6 #B765F6

monochromatic

#C6D40C #E5F32B #ECF665 #F3F99F #FAFDD9

Accessibility & contrast

On white

1.17

#ECF665 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.94

#ECF665 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF665

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF665	#FFFFFF	#000000	##000000
##ECF665	1.00	1.17	17.94	17.94
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.94	21.00	1.00	1.00
##000000	17.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB54

Deuteranopia (green-blind)

#FFEF6E

Tritanopia (blue-blind)

#FAE9D7

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf665;
/* rgb */ color: rgb(236, 246, 101);
/* oklch */ color: oklch(93.9% 0.166 112.9);

Tailwind

colors: {
  custom: {
    50: '#f5f996',
    500: '#ecf665',
    950: '#000000',
  },
}

SCSS

$custom: #ecf665;
$custom-light: #f5f996;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf665",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 101
  },
  "hsl": {
    "h": 64.138,
    "s": 88.957,
    "l": 68.039
  },
  "oklch": {
    "l": 0.93859,
    "c": 0.16645,
    "h": 112.9
  },
  "luminance": 0.84684
}

Semantic roles & 50–950 ramp

primary

#ECF665

secondary

#3B30CF

accent

#00E610

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF665

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

Preview Lab → · Contrast checker → · Palette generator →