#ECFF6B#ECFF6B

#ECFF6B is a very light, vivid yellow. Relative luminance 0.904; OKLCH L 95.8% C 0.172 H 115.9°. Best body text is #000000 at 19.08:1 contrast (WCAG AA passes).

Color values

HEX	#ECFF6B
RGB	rgb(236, 255, 107)
HSL	hsl(68, 100%, 71%)
HSV	hsv(68, 58%, 100%)
CMYK	cmyk(7.5%, 0%, 58%, 0%)
CIE-LAB	lab(96.17, -25.58, 66.95)
CIE-LCH	lch(96.17, 71.67, 110.91°)
OKLab	oklab(95.81% -0.0749 0.1544)
OKLCH	oklch(95.81% 0.172 115.9)
XYZ	xyz(73.0073, 90.4154, 27.5130)
Luminance	0.9041 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFF6B #7E6BFF

analogous

#FFC86B #ECFF6B #A2FF6B

triadic

#ECFF6B #6BECFF #FF6BEC

tetradic

#ECFF6B #6BFFC8 #7E6BFF #FF6BA2

square

#ECFF6B #6BFFC8 #7E6BFF #FF6BA2

split-complementary

#ECFF6B #6BA2FF #C86BFF

monochromatic

#D1F000 #E4FF2E #ECFF6B #F4FFA8 #FBFFE0

Accessibility & contrast

On white

1.10

#ECFF6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.08

#ECFF6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFF6B

19.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFF6B	#FFFFFF	#000000	##000000
##ECFF6B	1.00	1.10	19.08	19.08
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.08	21.00	1.00	1.00
##000000	19.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF35A

Deuteranopia (green-blind)

#FFF574

Tritanopia (blue-blind)

#F9F2DF

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #ecff6b;
/* rgb */ color: rgb(236, 255, 107);
/* oklch */ color: oklch(95.8% 0.172 115.9);

Tailwind

colors: {
  custom: {
    50: '#f5ff9a',
    500: '#ecff6b',
    950: '#000000',
  },
}

SCSS

$custom: #ecff6b;
$custom-light: #f5ff9a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecff6b",
  "rgb": {
    "r": 236,
    "g": 255,
    "b": 107
  },
  "hsl": {
    "h": 67.703,
    "s": 100,
    "l": 70.98
  },
  "oklch": {
    "l": 0.95814,
    "c": 0.17163,
    "h": 115.9
  },
  "luminance": 0.90414
}

Semantic roles & 50–950 ramp

primary

#ECFF6B

secondary

#4933DB

accent

#00E61D

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFF6B

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

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