#ECF799#ECF799

#ECF799 is a very light, moderate yellow. Relative luminance 0.867; OKLCH L 94.7% C 0.118 H 114.1°. Best body text is #000000 at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#ECF799
RGB	rgb(236, 247, 153)
HSL	hsl(67, 85%, 78%)
HSV	hsv(67, 38%, 97%)
CMYK	cmyk(4.5%, 0%, 38.1%, 3.1%)
CIE-LAB	lab(94.59, -17.54, 43.96)
CIE-LCH	lch(94.59, 47.33, 111.75°)
OKLab	oklab(94.72% -0.0481 0.1075)
OKLCH	oklch(94.72% 0.118 114.1)
XYZ	xyz(73.6031, 86.6552, 42.9795)
Luminance	0.8665 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF799 #A499F7

analogous

#F7D399 #ECF799 #BDF799

triadic

#ECF799 #99ECF7 #F799EC

tetradic

#ECF799 #99F7D3 #A499F7 #F799BD

square

#ECF799 #99F7D3 #A499F7 #F799BD

split-complementary

#ECF799 #99BDF7 #D399F7

monochromatic

#D7EE27 #E1F360 #ECF799 #F7FBD2 #FAFDE3

Accessibility & contrast

On white

1.15

#ECF799 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.33

#ECF799 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF799

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF799	#FFFFFF	#000000	##000000
##ECF799	1.00	1.15	18.33	18.33
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.33	21.00	1.00	1.00
##000000	18.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE92

Deuteranopia (green-blind)

#FFF19D

Tritanopia (blue-blind)

#F6EDE0

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf799;
/* rgb */ color: rgb(236, 247, 153);
/* oklch */ color: oklch(94.7% 0.118 114.1);

Tailwind

colors: {
  custom: {
    50: '#f3f9b8',
    500: '#ecf799',
    950: '#000000',
  },
}

SCSS

$custom: #ecf799;
$custom-light: #f3f9b8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf799",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 153
  },
  "hsl": {
    "h": 67.021,
    "s": 85.455,
    "l": 78.431
  },
  "oklch": {
    "l": 0.94722,
    "c": 0.11778,
    "h": 114.1
  },
  "luminance": 0.86654
}

Semantic roles & 50–950 ramp

primary

#ECF799

secondary

#6C5ED6

accent

#04E21E

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF799

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

Preview Lab → · Contrast checker → · Palette generator →