#ECF660#ECF660

#ECF660 is a very light, vivid yellow. Relative luminance 0.846; OKLCH L 93.8% C 0.170 H 112.8°. Best body text is #000000 at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#ECF660
RGB	rgb(236, 246, 96)
HSL	hsl(64, 89%, 67%)
HSV	hsv(64, 61%, 96%)
CMYK	cmyk(4.1%, 0%, 61%, 3.5%)
CIE-LAB	lab(93.71, -22.07, 68.80)
CIE-LCH	lch(93.71, 72.26, 107.78°)
OKLab	oklab(93.81% -0.0661 0.157)
OKLCH	oklch(93.81% 0.17 112.8)
XYZ	xyz(69.6610, 84.5903, 23.7220)
Luminance	0.8459 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF660 #6A60F6

analogous

#F6B560 #ECF660 #A1F660

triadic

#ECF660 #60ECF6 #F660EC

tetradic

#ECF660 #60F6B5 #6A60F6 #F660A1

square

#ECF660 #60F6B5 #6A60F6 #F660A1

split-complementary

#ECF660 #60A1F6 #B560F6

monochromatic

#C3D00C #E5F326 #ECF660 #F3F99A #FAFDD4

Accessibility & contrast

On white

1.17

#ECF660 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.92

#ECF660 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF660

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF660	#FFFFFF	#000000	##000000
##ECF660	1.00	1.17	17.92	17.92
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.92	21.00	1.00	1.00
##000000	17.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB4E

Deuteranopia (green-blind)

#FFEF6A

Tritanopia (blue-blind)

#FBE8D7

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf660;
/* rgb */ color: rgb(236, 246, 96);
/* oklch */ color: oklch(93.8% 0.170 112.8);

Tailwind

colors: {
  custom: {
    50: '#f5f993',
    500: '#ecf660',
    950: '#000000',
  },
}

SCSS

$custom: #ecf660;
$custom-light: #f5f993;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf660",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 96
  },
  "hsl": {
    "h": 64,
    "s": 89.286,
    "l": 67.059
  },
  "oklch": {
    "l": 0.93813,
    "c": 0.17034,
    "h": 112.8
  },
  "luminance": 0.84589
}

Semantic roles & 50–950 ramp

primary

#ECF660

secondary

#392FCB

accent

#00E60F

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF660

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

Preview Lab → · Contrast checker → · Palette generator →