#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
RGB	rgb(236, 239, 87)
HSL	hsl(61, 83%, 64%)
HSV	hsv(61, 64%, 94%)
CMYK	cmyk(1.3%, 0%, 63.6%, 6.3%)
CIE-LAB	lab(91.80, -19.26, 70.37)
CIE-LCH	lch(91.80, 72.96, 105.31°)
OKLab	oklab(92.27% -0.0591 0.159)
OKLCH	oklch(92.27% 0.17 110.4)
XYZ	xyz(67.1809, 80.2557, 20.9670)
Luminance	0.8025 (WCAG relative)
Temperature	warm
Family	yellow

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
##ECEF57	1.00	1.23	17.05	17.05
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.05	21.00	1.00	1.00
##000000	17.05	21.00	1.00	1.00

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 →