#ECF763#ECF763

#ECF763 is a very light, vivid yellow. Relative luminance 0.853; OKLCH L 94.1% C 0.169 H 113.2°. Best body text is #000000 at 18.05:1 contrast (WCAG AA passes).

Color values

HEX	#ECF763
RGB	rgb(236, 247, 99)
HSL	hsl(64, 90%, 68%)
HSV	hsv(64, 60%, 97%)
CMYK	cmyk(4.5%, 0%, 59.9%, 3.1%)
CIE-LAB	lab(93.99, -22.35, 67.89)
CIE-LCH	lch(93.99, 71.47, 108.22°)
OKLab	oklab(94.05% -0.0666 0.1554)
OKLCH	oklch(94.05% 0.169 113.2)
XYZ	xyz(70.1067, 85.2566, 24.5650)
Luminance	0.8526 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF763 #6E63F7

analogous

#F7B863 #ECF763 #A2F763

triadic

#ECF763 #63ECF7 #F763EC

tetradic

#ECF763 #63F7B8 #6E63F7 #F763A2

square

#ECF763 #63F7B8 #6E63F7 #F763A2

split-complementary

#ECF763 #63A2F7 #B863F7

monochromatic

#C6D50B #E5F429 #ECF763 #F3FA9D #FAFDD7

Accessibility & contrast

On white

1.16

#ECF763 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.05

#ECF763 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF763

18.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF763	#FFFFFF	#000000	##000000
##ECF763	1.00	1.16	18.05	18.05
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.05	21.00	1.00	1.00
##000000	18.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC51

Deuteranopia (green-blind)

#FFEF6C

Tritanopia (blue-blind)

#FAE9D8

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf763;
/* rgb */ color: rgb(236, 247, 99);
/* oklch */ color: oklch(94.1% 0.169 113.2);

Tailwind

colors: {
  custom: {
    50: '#f5f995',
    500: '#ecf763',
    950: '#000000',
  },
}

SCSS

$custom: #ecf763;
$custom-light: #f5f995;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf763",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 99
  },
  "hsl": {
    "h": 64.459,
    "s": 90.244,
    "l": 67.843
  },
  "oklch": {
    "l": 0.94051,
    "c": 0.16911,
    "h": 113.2
  },
  "luminance": 0.85255
}

Semantic roles & 50–950 ramp

primary

#ECF763

secondary

#3B2FCF

accent

#00E611

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF763

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

Preview Lab → · Contrast checker → · Palette generator →