#ECF99E#ECF99E

#ECF99E is a very light, moderate yellow. Relative luminance 0.881; OKLCH L 95.2% C 0.115 H 115.3°. Best body text is #000000 at 18.61:1 contrast (WCAG AA passes).

Color values

HEX	#ECF99E
RGB	rgb(236, 249, 158)
HSL	hsl(69, 88%, 80%)
HSV	hsv(69, 37%, 98%)
CMYK	cmyk(5.2%, 0%, 36.5%, 2.4%)
CIE-LAB	lab(95.18, -17.94, 42.27)
CIE-LCH	lch(95.18, 45.92, 113.00°)
OKLab	oklab(95.22% -0.049 0.1038)
OKLCH	oklch(95.22% 0.115 115.3)
XYZ	xyz(74.6396, 88.0536, 45.4051)
Luminance	0.8805 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF99E #AB9EF9

analogous

#F9D89E #ECF99E #BFF99E

triadic

#ECF99E #9EECF9 #F99EEC

tetradic

#ECF99E #9EF9D8 #AB9EF9 #F99EBF

square

#ECF99E #9EF9D8 #AB9EF9 #F99EBF

split-complementary

#ECF99E #9EBFF9 #D89EF9

monochromatic

#D5F22B #E1F564 #ECF99E #F7FDD8 #F9FDE2

Accessibility & contrast

On white

1.13

#ECF99E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.61

#ECF99E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF99E

18.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF99E	#FFFFFF	#000000	##000000
##ECF99E	1.00	1.13	18.61	18.61
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.61	21.00	1.00	1.00
##000000	18.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF097

Deuteranopia (green-blind)

#FFF2A2

Tritanopia (blue-blind)

#F6EFE2

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecf99e;
/* rgb */ color: rgb(236, 249, 158);
/* oklch */ color: oklch(95.2% 0.115 115.3);

Tailwind

colors: {
  custom: {
    50: '#f3fbbb',
    500: '#ecf99e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf99e;
$custom-light: #f3fbbb;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf99e",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 158
  },
  "hsl": {
    "h": 68.571,
    "s": 88.35,
    "l": 79.804
  },
  "oklch": {
    "l": 0.95217,
    "c": 0.1148,
    "h": 115.3
  },
  "luminance": 0.88053
}

Semantic roles & 50–950 ramp

primary

#ECF99E

secondary

#7361DA

accent

#01E521

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171712

muted

#858582

Preview Lab

Preview with #ECF99E

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

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