#ECFF61#ECFF61

#ECFF61 is a very light, vivid yellow. Relative luminance 0.902; OKLCH L 95.7% C 0.179 H 115.7°. Best body text is #000000 at 19.04:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF61
RGB	rgb(236, 255, 97)
HSL	hsl(67, 100%, 69%)
HSV	hsv(67, 62%, 100%)
CMYK	cmyk(7.5%, 0%, 62%, 0%)
CIE-LAB	lab(96.09, -26.26, 70.95)
CIE-LCH	lch(96.09, 75.65, 110.31°)
OKLab	oklab(95.72% -0.0778 0.1616)
OKLCH	oklch(95.72% 0.179 115.7)
XYZ	xyz(72.5113, 90.2170, 24.9007)
Luminance	0.9022 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF61 #7461FF

analogous

#FFC361 #ECFF61 #9DFF61

triadic

#ECFF61 #61ECFF #FF61EC

tetradic

#ECFF61 #61FFC3 #7461FF #FF619D

square

#ECFF61 #61FFC3 #7461FF #FF619D

split-complementary

#ECFF61 #619DFF #C361FF

monochromatic

#CAE600 #E5FF24 #ECFF61 #F3FF9E #FBFFDB

Accessibility & contrast

On white

1.10

#ECFF61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.04

#ECFF61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF61

19.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF61	#FFFFFF	#000000	##000000
##ECFF61	1.00	1.10	19.04	19.04
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.04	21.00	1.00	1.00
##000000	19.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF34D

Deuteranopia (green-blind)

#FFF56C

Tritanopia (blue-blind)

#FAF1DE

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff61;
/* rgb */ color: rgb(236, 255, 97);
/* oklch */ color: oklch(95.7% 0.179 115.7);

Tailwind

colors: {
  custom: {
    50: '#f5ff94',
    500: '#ecff61',
    950: '#000000',
  },
}

SCSS

$custom: #ecff61;
$custom-light: #f5ff94;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff61",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 97
  },
  "hsl": {
    "h": 67.215,
    "s": 100,
    "l": 69.02
  },
  "oklch": {
    "l": 0.95722,
    "c": 0.17938,
    "h": 115.7
  },
  "luminance": 0.90216
}

Semantic roles & 50–950 ramp

primary

#ECFF61

secondary

#402BDA

accent

#00E61C

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFF61

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

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