#ECE366#ECE366

#ECE366 is a very light, vivid yellow. Relative luminance 0.737; OKLCH L 89.9% C 0.146 H 105.1°. Best body text is #000000 at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#ECE366
RGB	rgb(236, 227, 102)
HSL	hsl(56, 78%, 66%)
HSV	hsv(56, 57%, 93%)
CMYK	cmyk(0%, 3.8%, 56.8%, 7.5%)
CIE-LAB	lab(88.80, -12.41, 60.88)
CIE-LCH	lch(88.80, 62.13, 101.52°)
OKLab	oklab(89.91% -0.0381 0.1409)
OKLCH	oklch(89.91% 0.146 105.1)
XYZ	xyz(64.4615, 73.7325, 23.4040)
Luminance	0.7373 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECE366 #666FEC

analogous

#ECA066 #ECE366 #B2EC66

triadic

#ECE366 #66ECE3 #E366EC

tetradic

#ECE366 #66ECA0 #666FEC #EC66B2

square

#ECE366 #66ECA0 #666FEC #EC66B2

split-complementary

#ECE366 #66B2EC #A066EC

monochromatic

#C0B518 #E5D930 #ECE366 #F3ED9C #FAF7D3

Accessibility & contrast

On white

1.33

#ECE366 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.75

#ECE366 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECE366

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECE366	#FFFFFF	#000000	##000000
##ECE366	1.00	1.33	15.75	15.75
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.75	21.00	1.00	1.00
##000000	15.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5DC59

Deuteranopia (green-blind)

#F8E26D

Tritanopia (blue-blind)

#FCD5C8

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #ece366;
/* rgb */ color: rgb(236, 227, 102);
/* oklch */ color: oklch(89.9% 0.146 105.1);

Tailwind

colors: {
  custom: {
    50: '#f5eb96',
    500: '#ece366',
    950: '#000000',
  },
}

SCSS

$custom: #ece366;
$custom-light: #f5eb96;
$custom-dark: #000000;

JSON

{
  "hex": "#ece366",
  "rgb": {
    "r": 236,
    "g": 227,
    "b": 102
  },
  "hsl": {
    "h": 55.97,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.89913,
    "c": 0.14595,
    "h": 105.1
  },
  "luminance": 0.7373
}

Semantic roles & 50–950 ramp

primary

#ECE366

secondary

#3841BE

accent

#19DA0B

background

#FFFEFC

surface

#FFFDF5

border

#D7D5CF

text

#17160E

muted

#85847F

Preview Lab

Preview with #ECE366

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

Preview Lab → · Contrast checker → · Palette generator →