#ECFB61#ECFB61

#ECFB61 is a very light, vivid yellow. Relative luminance 0.877; OKLCH L 94.9% C 0.175 H 114.5°. Best body text is #000000 at 18.54:1 contrast (WCAG AA passes).

Color values

HEX	#ECFB61
RGB	rgb(236, 251, 97)
HSL	hsl(66, 95%, 68%)
HSV	hsv(66, 61%, 98%)
CMYK	cmyk(6%, 0%, 61.4%, 1.6%)
CIE-LAB	lab(95.03, -24.38, 69.82)
CIE-LCH	lch(95.03, 73.95, 109.25°)
OKLab	oklab(94.88% -0.0725 0.1593)
OKLCH	oklch(94.88% 0.175 114.5)
XYZ	xyz(71.2486, 87.6915, 24.4798)
Luminance	0.8769 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFB61 #7061FB

analogous

#FBBD61 #ECFB61 #9FFB61

triadic

#ECFB61 #61ECFB #FB61EC

tetradic

#ECFB61 #61FBBD #7061FB #FB619F

square

#ECFB61 #61FBBD #7061FB #FB619F

split-complementary

#ECFB61 #619FFB #BD61FB

monochromatic

#C7DC06 #E5F925 #ECFB61 #F3FD9D #FAFED8

Accessibility & contrast

On white

1.13

#ECFB61 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.54

#ECFB61 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFB61

18.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFB61	#FFFFFF	#000000	##000000
##ECFB61	1.00	1.13	18.54	18.54
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.54	21.00	1.00	1.00
##000000	18.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF4E

Deuteranopia (green-blind)

#FFF26B

Tritanopia (blue-blind)

#FAEDDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfb61;
/* rgb */ color: rgb(236, 251, 97);
/* oklch */ color: oklch(94.9% 0.175 114.5);

Tailwind

colors: {
  custom: {
    50: '#f5fc94',
    500: '#ecfb61',
    950: '#000000',
  },
}

SCSS

$custom: #ecfb61;
$custom-light: #f5fc94;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfb61",
  "rgb": {
    "r": 236,
    "g": 251,
    "b": 97
  },
  "hsl": {
    "h": 65.844,
    "s": 95.062,
    "l": 68.235
  },
  "oklch": {
    "l": 0.94876,
    "c": 0.17499,
    "h": 114.5
  },
  "luminance": 0.8769
}

Semantic roles & 50–950 ramp

primary

#ECFB61

secondary

#3C2CD5

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFB61

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

Preview Lab → · Contrast checker → · Palette generator →