#ECF699#ECF699

#ECF699 is a very light, moderate yellow. Relative luminance 0.860; OKLCH L 94.5% C 0.117 H 113.7°. Best body text is #000000 at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#ECF699
RGB	rgb(236, 246, 153)
HSL	hsl(66, 84%, 78%)
HSV	hsv(66, 38%, 96%)
CMYK	cmyk(4.1%, 0%, 37.8%, 3.5%)
CIE-LAB	lab(94.33, -17.05, 43.63)
CIE-LCH	lch(94.33, 46.84, 111.35°)
OKLab	oklab(94.52% -0.0467 0.1067)
OKLCH	oklch(94.52% 0.117 113.7)
XYZ	xyz(73.2981, 86.0452, 42.8779)
Luminance	0.8604 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF699 #A399F6

analogous

#F6D299 #ECF699 #BDF699

triadic

#ECF699 #99ECF6 #F699EC

tetradic

#ECF699 #99F6D2 #A399F6 #F699BD

square

#ECF699 #99F6D2 #A399F6 #F699BD

split-complementary

#ECF699 #99BDF6 #D299F6

monochromatic

#D7EC29 #E2F161 #ECF699 #F6FBD1 #FAFDE3

Accessibility & contrast

On white

1.15

#ECF699 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.21

#ECF699 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF699

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF699	#FFFFFF	#000000	##000000
##ECF699	1.00	1.15	18.21	18.21
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.21	21.00	1.00	1.00
##000000	18.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE92

Deuteranopia (green-blind)

#FFF09D

Tritanopia (blue-blind)

#F6ECDF

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf699;
/* rgb */ color: rgb(236, 246, 153);
/* oklch */ color: oklch(94.5% 0.117 113.7);

Tailwind

colors: {
  custom: {
    50: '#f3f9b8',
    500: '#ecf699',
    950: '#000000',
  },
}

SCSS

$custom: #ecf699;
$custom-light: #f3f9b8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf699",
  "rgb": {
    "r": 236,
    "g": 246,
    "b": 153
  },
  "hsl": {
    "h": 66.452,
    "s": 83.784,
    "l": 78.235
  },
  "oklch": {
    "l": 0.94515,
    "c": 0.11652,
    "h": 113.7
  },
  "luminance": 0.86044
}

Semantic roles & 50–950 ramp

primary

#ECF699

secondary

#6B5ED5

accent

#05E01D

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF699

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

Preview Lab → · Contrast checker → · Palette generator →