#ECFB5D#ECFB5D

#ECFB5D is a very light, vivid yellow. Relative luminance 0.876; OKLCH L 94.8% C 0.178 H 114.4°. Best body text is #000000 at 18.52:1 contrast (WCAG AA passes).

Color values

HEX	#ECFB5D
RGB	rgb(236, 251, 93)
HSL	hsl(66, 95%, 67%)
HSV	hsv(66, 63%, 98%)
CMYK	cmyk(6%, 0%, 62.9%, 1.6%)
CIE-LAB	lab(95.00, -24.63, 71.37)
CIE-LCH	lch(95.00, 75.51, 109.04°)
OKLab	oklab(94.84% -0.0736 0.162)
OKLCH	oklch(94.84% 0.178 114.4)
XYZ	xyz(71.0668, 87.6188, 23.5222)
Luminance	0.8762 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFB5D #6C5DFB

analogous

#FBBB5D #ECFB5D #9DFB5D

triadic

#ECFB5D #5DECFB #FB5DEC

tetradic

#ECFB5D #5DFBBB #6C5DFB #FB5D9D

square

#ECFB5D #5DFBBB #6C5DFB #FB5D9D

split-complementary

#ECFB5D #5D9DFB #BB5DFB

monochromatic

#C4D805 #E5FA21 #ECFB5D #F3FC99 #FAFED4

Accessibility & contrast

On white

1.13

#ECFB5D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.52

#ECFB5D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFB5D

18.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFB5D	#FFFFFF	#000000	##000000
##ECFB5D	1.00	1.13	18.52	18.52
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.52	21.00	1.00	1.00
##000000	18.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF48

Deuteranopia (green-blind)

#FFF268

Tritanopia (blue-blind)

#FAEDDA

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfb5d;
/* rgb */ color: rgb(236, 251, 93);
/* oklch */ color: oklch(94.8% 0.178 114.4);

Tailwind

colors: {
  custom: {
    50: '#f5fc92',
    500: '#ecfb5d',
    950: '#000000',
  },
}

SCSS

$custom: #ecfb5d;
$custom-light: #f5fc92;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfb5d",
  "rgb": {
    "r": 236,
    "g": 251,
    "b": 93
  },
  "hsl": {
    "h": 65.696,
    "s": 95.181,
    "l": 67.451
  },
  "oklch": {
    "l": 0.94841,
    "c": 0.17794,
    "h": 114.4
  },
  "luminance": 0.87618
}

Semantic roles & 50–950 ramp

primary

#ECFB5D

secondary

#3A2AD2

accent

#00E616

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECFB5D

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

Preview Lab → · Contrast checker → · Palette generator →