#ECF273#ECF273

#ECF273 is a very light, vivid yellow. Relative luminance 0.826; OKLCH L 93.2% C 0.150 H 111.4°. Best body text is #000000 at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#ECF273
RGB	rgb(236, 242, 115)
HSL	hsl(63, 83%, 70%)
HSV	hsv(63, 52%, 95%)
CMYK	cmyk(2.5%, 0%, 52.5%, 5.1%)
CIE-LAB	lab(92.83, -18.76, 59.70)
CIE-LCH	lch(92.83, 62.58, 107.45°)
OKLab	oklab(93.17% -0.0549 0.1398)
OKLCH	oklch(93.17% 0.15 111.4)
XYZ	xyz(69.4403, 82.5764, 28.4972)
Luminance	0.8257 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF273 #7973F2

analogous

#F2B973 #ECF273 #ACF273

triadic

#ECF273 #73ECF2 #F273EC

tetradic

#ECF273 #73F2B9 #7973F2 #F273AC

square

#ECF273 #73F2B9 #7973F2 #F273AC

split-complementary

#ECF273 #73ACF2 #B973F2

monochromatic

#CDD714 #E4ED3B #ECF273 #F4F7AB #FBFCE3

Accessibility & contrast

On white

1.20

#ECF273 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.52

#ECF273 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF273

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF273	#FFFFFF	#000000	##000000
##ECF273	1.00	1.20	17.52	17.52
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.52	21.00	1.00	1.00
##000000	17.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE967

Deuteranopia (green-blind)

#FFEC7A

Tritanopia (blue-blind)

#FAE5D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf273;
/* rgb */ color: rgb(236, 242, 115);
/* oklch */ color: oklch(93.2% 0.150 111.4);

Tailwind

colors: {
  custom: {
    50: '#f4f69f',
    500: '#ecf273',
    950: '#000000',
  },
}

SCSS

$custom: #ecf273;
$custom-light: #f4f69f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf273",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 115
  },
  "hsl": {
    "h": 62.835,
    "s": 83.007,
    "l": 70
  },
  "oklch": {
    "l": 0.93167,
    "c": 0.15014,
    "h": 111.4
  },
  "luminance": 0.82575
}

Semantic roles & 50–950 ramp

primary

#ECF273

secondary

#443DCC

accent

#06DF10

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF273

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

Preview Lab → · Contrast checker → · Palette generator →