#ECFA99#ECFA99

#ECFA99 is a very light, vivid yellow. Relative luminance 0.885; OKLCH L 95.3% C 0.122 H 115.5°. Best body text is #000000 at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#ECFA99
RGB	rgb(236, 250, 153)
HSL	hsl(69, 91%, 79%)
HSV	hsv(69, 39%, 98%)
CMYK	cmyk(5.6%, 0%, 38.8%, 2%)
CIE-LAB	lab(95.37, -18.99, 44.96)
CIE-LCH	lch(95.37, 48.81, 112.90°)
OKLab	oklab(95.35% -0.0523 0.1098)
OKLCH	oklch(95.35% 0.122 115.5)
XYZ	xyz(74.5279, 88.5047, 43.2878)
Luminance	0.8850 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFA99 #A799FA

analogous

#FAD899 #ECFA99 #BCFA99

triadic

#ECFA99 #99ECFA #FA99EC

tetradic

#ECFA99 #99FAD8 #A799FA #FA99BC

square

#ECFA99 #99FAD8 #A799FA #FA99BC

split-complementary

#ECFA99 #99BCFA #D899FA

monochromatic

#D6F424 #E1F75F #ECFA99 #F7FDD3 #FAFEE2

Accessibility & contrast

On white

1.12

#ECFA99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.70

#ECFA99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFA99

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFA99	#FFFFFF	#000000	##000000
##ECFA99	1.00	1.12	18.70	18.70
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.70	21.00	1.00	1.00
##000000	18.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF192

Deuteranopia (green-blind)

#FFF39E

Tritanopia (blue-blind)

#F6F0E2

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #ecfa99;
/* rgb */ color: rgb(236, 250, 153);
/* oklch */ color: oklch(95.3% 0.122 115.5);

Tailwind

colors: {
  custom: {
    50: '#f3fbb8',
    500: '#ecfa99',
    950: '#000000',
  },
}

SCSS

$custom: #ecfa99;
$custom-light: #f3fbb8;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfa99",
  "rgb": {
    "r": 236,
    "g": 250,
    "b": 153
  },
  "hsl": {
    "h": 68.66,
    "s": 90.654,
    "l": 79.02
  },
  "oklch": {
    "l": 0.95345,
    "c": 0.12158,
    "h": 115.5
  },
  "luminance": 0.88504
}

Semantic roles & 50–950 ramp

primary

#ECFA99

secondary

#6F5DDB

accent

#00E621

background

#FFFFFD

surface

#FEFFF8

border

#D6D7D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECFA99

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

Preview Lab → · Contrast checker → · Palette generator →