#ECF561#ECF561

#ECF561 is a very light, vivid yellow. Relative luminance 0.840; OKLCH L 93.6% C 0.169 H 112.5°. Best body text is #000000 at 17.80:1 contrast (WCAG AA passes).

Color values

HEX	#ECF561
RGB	rgb(236, 245, 97)
HSL	hsl(64, 88%, 67%)
HSV	hsv(64, 60%, 96%)
CMYK	cmyk(3.7%, 0%, 60.4%, 3.9%)
CIE-LAB	lab(93.45, -21.53, 68.12)
CIE-LCH	lch(93.45, 71.44, 107.54°)
OKLab	oklab(93.61% -0.0645 0.1557)
OKLCH	oklch(93.61% 0.169 112.5)
XYZ	xyz(69.4039, 84.0022, 23.8649)
Luminance	0.8400 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF561 #6A61F5

analogous

#F5B461 #ECF561 #A2F561

triadic

#ECF561 #61ECF5 #F561EC

tetradic

#ECF561 #61F5B4 #6A61F5 #F561A2

square

#ECF561 #61F5B4 #6A61F5 #F561A2

split-complementary

#ECF561 #61A2F5 #B461F5

monochromatic

#C3CF0D #E5F127 #ECF561 #F3F99B #FAFCD4

Accessibility & contrast

On white

1.18

#ECF561 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.80

#ECF561 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF561

17.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF561	#FFFFFF	#000000	##000000
##ECF561	1.00	1.18	17.80	17.80
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.80	21.00	1.00	1.00
##000000	17.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA4F

Deuteranopia (green-blind)

#FFEE6A

Tritanopia (blue-blind)

#FBE7D6

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf561;
/* rgb */ color: rgb(236, 245, 97);
/* oklch */ color: oklch(93.6% 0.169 112.5);

Tailwind

colors: {
  custom: {
    50: '#f5f894',
    500: '#ecf561',
    950: '#000000',
  },
}

SCSS

$custom: #ecf561;
$custom-light: #f5f894;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf561",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 97
  },
  "hsl": {
    "h": 63.649,
    "s": 88.095,
    "l": 67.059
  },
  "oklch": {
    "l": 0.93612,
    "c": 0.1685,
    "h": 112.5
  },
  "luminance": 0.84001
}

Semantic roles & 50–950 ramp

primary

#ECF561

secondary

#3930CA

accent

#01E50F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF561

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

Preview Lab → · Contrast checker → · Palette generator →