#ECF350#ECF350

#ECF350 is a very light, vivid yellow. Relative luminance 0.825; OKLCH L 93.1% C 0.178 H 111.8°. Best body text is #000000 at 17.50:1 contrast (WCAG AA passes).

Color values

HEX#ECF350
RGBrgb(236, 243, 80)
HSLhsl(63, 87%, 63%)
HSVhsv(63, 67%, 95%)
CMYKcmyk(2.9%, 0%, 67.1%, 4.7%)
CIE-LABlab(92.80, -21.58, 74.04)
CIE-LCHlch(92.80, 77.12, 106.25°)
OKLaboklab(93.05% -0.0663 0.1657)
OKLCHoklch(93.05% 0.178 111.8)
XYZxyz(68.0927, 82.5149, 19.9279)
Luminance0.8251 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#ECF350 #5750F3
analogous
#F3A950 #ECF350 #9AF350
triadic
#ECF350 #50ECF3 #F350EC
tetradic
#ECF350 #50F3A9 #5750F3 #F3509A
square
#ECF350 #50F3A9 #5750F3 #F3509A
split-complementary
#ECF350 #509AF3 #A950F3
monochromatic
#B4BC0D #E6EF17 #ECF350 #F2F789 #F8FBC3

Accessibility & contrast

On white

1.20
#ECF350 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

17.50
#ECF350 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF350
17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##ECF350#FFFFFF#000000##000000
##ECF3501.001.2017.5017.50
#FFFFFF1.201.0021.0021.00
#00000017.5021.001.001.00
##00000017.5021.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFE837
Deuteranopia (green-blind)
#FFEC5C
Tritanopia (blue-blind)
#FCE5D3
Achromatopsia (no color)
#EAEAEA

Design tokens & code

CSS
--color: #ecf350;
/* rgb */ color: rgb(236, 243, 80);
/* oklch */ color: oklch(93.1% 0.178 111.8);
Tailwind
colors: {
  custom: {
    50: '#f6f68a',
    500: '#ecf350',
    950: '#000000',
  },
}
SCSS
$custom: #ecf350;
$custom-light: #f6f68a;
$custom-dark: #000000;
JSON
{
  "hex": "#ecf350",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 80
  },
  "hsl": {
    "h": 62.577,
    "s": 87.166,
    "l": 63.333
  },
  "oklch": {
    "l": 0.93052,
    "c": 0.17846,
    "h": 111.8
  },
  "luminance": 0.82513
}

Semantic roles & 50–950 ramp

primary
#ECF350
secondary
#332DBA
accent
#02E40B
background
#FFFFFC
surface
#FFFEF4
border
#D7D6CE
text
#18170C
muted
#86857F

Preview Lab

Preview with #ECF350

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

Preview Lab → · Contrast checker → · Palette generator →

#ECF350 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva