#ECEF57#ECEF57

#ECEF57 is a very light, vivid yellow. Relative luminance 0.803; OKLCH L 92.3% C 0.170 H 110.4°. Best body text is #000000 at 17.05:1 contrast (WCAG AA passes).

Color values

HEX#ECEF57
RGBrgb(236, 239, 87)
HSLhsl(61, 83%, 64%)
HSVhsv(61, 64%, 94%)
CMYKcmyk(1.3%, 0%, 63.6%, 6.3%)
CIE-LABlab(91.80, -19.26, 70.37)
CIE-LCHlch(91.80, 72.96, 105.31°)
OKLaboklab(92.27% -0.0591 0.159)
OKLCHoklch(92.27% 0.17 110.4)
XYZxyz(67.1809, 80.2557, 20.9670)
Luminance0.8025 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#ECEF57 #5A57EF
analogous
#EFA657 #ECEF57 #A0EF57
triadic
#ECEF57 #57ECEF #EF57EC
tetradic
#ECEF57 #57EFA6 #5A57EF #EF57A0
square
#ECEF57 #57EFA6 #5A57EF #EF57A0
split-complementary
#ECEF57 #57A0EF #A657EF
monochromatic
#B7BA12 #E6EA1F #ECEF57 #F2F48F #F9FAC7

Accessibility & contrast

On white

1.23
#ECEF57 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

17.05
#ECEF57 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECEF57
17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##ECEF57#FFFFFF#000000##000000
##ECEF571.001.2317.0517.05
#FFFFFF1.231.0021.0021.00
#00000017.0521.001.001.00
##00000017.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#FFE543
Deuteranopia (green-blind)
#FFEA61
Tritanopia (blue-blind)
#FCE1D0
Achromatopsia (no color)
#E7E7E7

Design tokens & code

CSS
--color: #ecef57;
/* rgb */ color: rgb(236, 239, 87);
/* oklch */ color: oklch(92.3% 0.170 110.4);
Tailwind
colors: {
  custom: {
    50: '#f5f48e',
    500: '#ecef57',
    950: '#000000',
  },
}
SCSS
$custom: #ecef57;
$custom-light: #f5f48e;
$custom-dark: #000000;
JSON
{
  "hex": "#ecef57",
  "rgb": {
    "r": 236,
    "g": 239,
    "b": 87
  },
  "hsl": {
    "h": 61.184,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.92267,
    "c": 0.16965,
    "h": 110.4
  },
  "luminance": 0.80254
}

Semantic roles & 50–950 ramp

primary
#ECEF57
secondary
#3431B9
accent
#06DF0B
background
#FFFFFC
surface
#FFFEF4
border
#D7D6CE
text
#18170D
muted
#86857F

Preview Lab

Preview with #ECEF57

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

Preview Lab → · Contrast checker → · Palette generator →

#ECEF57 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva