#ECE663#ECE663

#ECE663 is a very light, vivid yellow. Relative luminance 0.753; OKLCH L 90.5% C 0.151 H 106.6°. Best body text is #000000 at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#ECE663
RGB	rgb(236, 230, 99)
HSL	hsl(57, 78%, 66%)
HSV	hsv(57, 58%, 93%)
CMYK	cmyk(0%, 2.5%, 58.1%, 7.5%)
CIE-LAB	lab(89.55, -14.11, 63.02)
CIE-LCH	lch(89.55, 64.58, 102.62°)
OKLab	oklab(90.5% -0.0433 0.1451)
OKLCH	oklch(90.5% 0.151 106.6)
XYZ	xyz(65.1431, 75.3294, 22.9105)
Luminance	0.7533 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECE663 #6369EC

analogous

#ECA163 #ECE663 #ADEC63

triadic

#ECE663 #63ECE6 #E663EC

tetradic

#ECE663 #63ECA1 #6369EC #EC63AD

square

#ECE663 #63ECA1 #6369EC #EC63AD

split-complementary

#ECE663 #63ADEC #A163EC

monochromatic

#BEB617 #E5DD2C #ECE663 #F3EF9A #F9F7D0

Accessibility & contrast

On white

1.31

#ECE663 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.07

#ECE663 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECE663

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECE663	#FFFFFF	#000000	##000000
##ECE663	1.00	1.31	16.07	16.07
#FFFFFF	1.31	1.00	21.00	21.00
#000000	16.07	21.00	1.00	1.00
##000000	16.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F8DE55

Deuteranopia (green-blind)

#FBE46A

Tritanopia (blue-blind)

#FCD8CA

Achromatopsia (no color)

#E1E1E1

Design tokens & code

CSS

--color: #ece663;
/* rgb */ color: rgb(236, 230, 99);
/* oklch */ color: oklch(90.5% 0.151 106.6);

Tailwind

colors: {
  custom: {
    50: '#f5ed94',
    500: '#ece663',
    950: '#000000',
  },
}

SCSS

$custom: #ece663;
$custom-light: #f5ed94;
$custom-dark: #000000;

JSON

{
  "hex": "#ece663",
  "rgb": {
    "r": 236,
    "g": 230,
    "b": 99
  },
  "hsl": {
    "h": 57.372,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.90502,
    "c": 0.15141,
    "h": 106.6
  },
  "luminance": 0.75327
}

Semantic roles & 50–950 ramp

primary

#ECE663

secondary

#373DBC

accent

#14DB0B

background

#FFFEFC

surface

#FFFDF5

border

#D7D5CF

text

#17160D

muted

#85847F

Preview Lab

Preview with #ECE663

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

Preview Lab → · Contrast checker → · Palette generator →