#ECF75C#ECF75C

#ECF75C is a very light, vivid yellow. Relative luminance 0.851; OKLCH L 94.0% C 0.174 H 113.2°. Best body text is #000000 at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#ECF75C
RGB	rgb(236, 247, 92)
HSL	hsl(64, 91%, 66%)
HSV	hsv(64, 63%, 97%)
CMYK	cmyk(4.5%, 0%, 62.8%, 3.1%)
CIE-LAB	lab(93.94, -22.80, 70.65)
CIE-LCH	lch(93.94, 74.24, 107.89°)
OKLab	oklab(93.99% -0.0686 0.1603)
OKLCH	oklch(93.99% 0.174 113.2)
XYZ	xyz(69.7864, 85.1285, 22.8784)
Luminance	0.8513 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF75C #675CF7

analogous

#F7B55C #ECF75C #9FF75C

triadic

#ECF75C #5CECF7 #F75CEC

tetradic

#ECF75C #5CF7B5 #675CF7 #F75C9F

square

#ECF75C #5CF7B5 #675CF7 #F75C9F

split-complementary

#ECF75C #5C9FF7 #B55CF7

monochromatic

#C1CE0A #E5F422 #ECF75C #F3FA96 #FAFDD1

Accessibility & contrast

On white

1.17

#ECF75C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.03

#ECF75C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF75C

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF75C	#FFFFFF	#000000	##000000
##ECF75C	1.00	1.17	18.03	18.03
#FFFFFF	1.17	1.00	21.00	21.00
#000000	18.03	21.00	1.00	1.00
##000000	18.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC48

Deuteranopia (green-blind)

#FFEF66

Tritanopia (blue-blind)

#FBE9D7

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf75c;
/* rgb */ color: rgb(236, 247, 92);
/* oklch */ color: oklch(94.0% 0.174 113.2);

Tailwind

colors: {
  custom: {
    50: '#f5f991',
    500: '#ecf75c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf75c;
$custom-light: #f5f991;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf75c",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 92
  },
  "hsl": {
    "h": 64.258,
    "s": 90.643,
    "l": 66.471
  },
  "oklch": {
    "l": 0.93989,
    "c": 0.17437,
    "h": 113.2
  },
  "luminance": 0.85127
}

Semantic roles & 50–950 ramp

primary

#ECF75C

secondary

#382DCA

accent

#00E610

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECF75C

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

Preview Lab → · Contrast checker → · Palette generator →