#ECF863#ECF863

#ECF863 is a very light, vivid yellow. Relative luminance 0.859; OKLCH L 94.3% C 0.170 H 113.5°. Best body text is #000000 at 18.17:1 contrast (WCAG AA passes).

Color values

HEX	#ECF863
RGB	rgb(236, 248, 99)
HSL	hsl(65, 91%, 68%)
HSV	hsv(65, 60%, 97%)
CMYK	cmyk(4.8%, 0%, 60.1%, 2.7%)
CIE-LAB	lab(94.26, -22.82, 68.18)
CIE-LCH	lch(94.26, 71.89, 108.51°)
OKLab	oklab(94.26% -0.0679 0.156)
OKLCH	oklch(94.26% 0.17 113.5)
XYZ	xyz(70.4133, 85.8698, 24.6672)
Luminance	0.8587 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF863 #6F63F8

analogous

#F8B963 #ECF863 #A1F863

triadic

#ECF863 #63ECF8 #F863EC

tetradic

#ECF863 #63F8B9 #6F63F8 #F863A1

square

#ECF863 #63F8B9 #6F63F8 #F863A1

split-complementary

#ECF863 #63A1F8 #B963F8

monochromatic

#C6D70A #E5F528 #ECF863 #F3FB9E #FAFDD8

Accessibility & contrast

On white

1.16

#ECF863 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.17

#ECF863 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF863

18.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF863	#FFFFFF	#000000	##000000
##ECF863	1.00	1.16	18.17	18.17
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.17	21.00	1.00	1.00
##000000	18.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED51

Deuteranopia (green-blind)

#FFF06C

Tritanopia (blue-blind)

#FAEAD9

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf863;
/* rgb */ color: rgb(236, 248, 99);
/* oklch */ color: oklch(94.3% 0.170 113.5);

Tailwind

colors: {
  custom: {
    50: '#f5fa95',
    500: '#ecf863',
    950: '#000000',
  },
}

SCSS

$custom: #ecf863;
$custom-light: #f5fa95;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf863",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 99
  },
  "hsl": {
    "h": 64.832,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.94261,
    "c": 0.17019,
    "h": 113.5
  },
  "luminance": 0.85869
}

Semantic roles & 50–950 ramp

primary

#ECF863

secondary

#3B2ED1

accent

#00E612

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF863

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

Preview Lab → · Contrast checker → · Palette generator →