#ECF97C#ECF97C

#ECF97C is a very light, vivid yellow. Relative luminance 0.870; OKLCH L 94.7% C 0.150 H 114.2°. Best body text is #000000 at 18.41:1 contrast (WCAG AA passes).

Color values

HEX	#ECF97C
RGB	rgb(236, 249, 124)
HSL	hsl(66, 91%, 73%)
HSV	hsv(66, 50%, 98%)
CMYK	cmyk(5.2%, 0%, 50.2%, 2.4%)
CIE-LAB	lab(94.76, -21.37, 57.89)
CIE-LCH	lch(94.76, 61.71, 110.26°)
OKLab	oklab(94.74% -0.0614 0.1367)
OKLCH	oklch(94.74% 0.15 114.2)
XYZ	xyz(72.1071, 87.0405, 32.0668)
Luminance	0.8704 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF97C #897CF9

analogous

#F9C77C #ECF97C #ADF97C

triadic

#ECF97C #7CECF9 #F97CEC

tetradic

#ECF97C #7CF9C7 #897CF9 #F97CAD

square

#ECF97C #7CF9C7 #897CF9 #F97CAD

split-complementary

#ECF97C #7CADF9 #C77CF9

monochromatic

#D8F00B #E4F641 #ECF97C #F4FCB7 #FBFEE2

Accessibility & contrast

On white

1.14

#ECF97C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.41

#ECF97C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF97C

18.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF97C	#FFFFFF	#000000	##000000
##ECF97C	1.00	1.14	18.41	18.41
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.41	21.00	1.00	1.00
##000000	18.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF70

Deuteranopia (green-blind)

#FFF183

Tritanopia (blue-blind)

#F9EDDD

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf97c;
/* rgb */ color: rgb(236, 249, 124);
/* oklch */ color: oklch(94.7% 0.150 114.2);

Tailwind

colors: {
  custom: {
    50: '#f4fba5',
    500: '#ecf97c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf97c;
$custom-light: #f4fba5;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf97c",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 124
  },
  "hsl": {
    "h": 66.24,
    "s": 91.241,
    "l": 73.137
  },
  "oklch": {
    "l": 0.94736,
    "c": 0.14983,
    "h": 114.2
  },
  "luminance": 0.87039
}

Semantic roles & 50–950 ramp

primary

#ECF97C

secondary

#5344D6

accent

#00E618

background

#FFFFFC

surface

#FFFFF6

border

#D7D7D0

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF97C

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

Preview Lab → · Contrast checker → · Palette generator →