#ECF369#ECF369

#ECF369 is a very light, vivid yellow. Relative luminance 0.830; OKLCH L 93.3% C 0.160 H 111.8°. Best body text is #000000 at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#ECF369
RGB	rgb(236, 243, 105)
HSL	hsl(63, 85%, 68%)
HSV	hsv(63, 57%, 95%)
CMYK	cmyk(2.9%, 0%, 56.8%, 4.7%)
CIE-LAB	lab(92.99, -20.01, 64.28)
CIE-LCH	lch(92.99, 67.32, 107.29°)
OKLab	oklab(93.27% -0.0594 0.1485)
OKLCH	oklch(93.27% 0.16 111.8)
XYZ	xyz(69.1942, 82.9554, 25.7288)
Luminance	0.8295 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF369 #7069F3

analogous

#F3B569 #ECF369 #A7F369

triadic

#ECF369 #69ECF3 #F369EC

tetradic

#ECF369 #69F3B5 #7069F3 #F369A7

square

#ECF369 #69F3B5 #7069F3 #F369A7

split-complementary

#ECF369 #69A7F3 #B569F3

monochromatic

#C7D111 #E5EE30 #ECF369 #F3F8A2 #FAFCDA

Accessibility & contrast

On white

1.19

#ECF369 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.59

#ECF369 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF369

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF369	#FFFFFF	#000000	##000000
##ECF369	1.00	1.19	17.59	17.59
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.59	21.00	1.00	1.00
##000000	17.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE95A

Deuteranopia (green-blind)

#FFED71

Tritanopia (blue-blind)

#FAE6D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf369;
/* rgb */ color: rgb(236, 243, 105);
/* oklch */ color: oklch(93.3% 0.160 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f698',
    500: '#ecf369',
    950: '#000000',
  },
}

SCSS

$custom: #ecf369;
$custom-light: #f5f698;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf369",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 105
  },
  "hsl": {
    "h": 63.043,
    "s": 85.185,
    "l": 68.235
  },
  "oklch": {
    "l": 0.93269,
    "c": 0.15993,
    "h": 111.8
  },
  "luminance": 0.82954
}

Semantic roles & 50–950 ramp

primary

#ECF369

secondary

#3C34CC

accent

#04E20F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF369

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

Preview Lab → · Contrast checker → · Palette generator →