#ECFA66#ECFA66

#ECFA66 is a very light, vivid yellow. Relative luminance 0.872; OKLCH L 94.7% C 0.170 H 114.2°. Best body text is #000000 at 18.43:1 contrast (WCAG AA passes).

Color values

HEX	#ECFA66
RGB	rgb(236, 250, 102)
HSL	hsl(66, 94%, 69%)
HSV	hsv(66, 59%, 98%)
CMYK	cmyk(5.6%, 0%, 59.2%, 2%)
CIE-LAB	lab(94.81, -23.57, 67.54)
CIE-LCH	lch(94.81, 71.53, 109.24°)
OKLab	oklab(94.71% -0.0697 0.1551)
OKLCH	oklch(94.71% 0.17 114.2)
XYZ	xyz(71.1776, 87.1646, 25.6427)
Luminance	0.8716 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFA66 #7466FA

analogous

#FABE66 #ECFA66 #A2FA66

triadic

#ECFA66 #66ECFA #FA66EC

tetradic

#ECFA66 #66FABE #7466FA #FA66A2

square

#ECFA66 #66FABE #7466FA #FA66A2

split-complementary

#ECFA66 #66A2FA #BE66FA

monochromatic

#CADE07 #E5F82B #ECFA66 #F3FCA1 #FBFEDD

Accessibility & contrast

On white

1.14

#ECFA66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.43

#ECFA66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFA66

18.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFA66	#FFFFFF	#000000	##000000
##ECFA66	1.00	1.14	18.43	18.43
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.43	21.00	1.00	1.00
##000000	18.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF55

Deuteranopia (green-blind)

#FFF26F

Tritanopia (blue-blind)

#FAEDDB

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecfa66;
/* rgb */ color: rgb(236, 250, 102);
/* oklch */ color: oklch(94.7% 0.170 114.2);

Tailwind

colors: {
  custom: {
    50: '#f5fb97',
    500: '#ecfa66',
    950: '#000000',
  },
}

SCSS

$custom: #ecfa66;
$custom-light: #f5fb97;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfa66",
  "rgb": {
    "r": 236,
    "g": 250,
    "b": 102
  },
  "hsl": {
    "h": 65.676,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.9471,
    "c": 0.17003,
    "h": 114.2
  },
  "luminance": 0.87163
}

Semantic roles & 50–950 ramp

primary

#ECFA66

secondary

#4030D4

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFA66

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

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