#ECF368#ECF368

#ECF368 is a very light, vivid yellow. Relative luminance 0.829; OKLCH L 93.3% C 0.161 H 111.8°. Best body text is #000000 at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#ECF368
RGB	rgb(236, 243, 104)
HSL	hsl(63, 85%, 68%)
HSV	hsv(63, 57%, 95%)
CMYK	cmyk(2.9%, 0%, 57.2%, 4.7%)
CIE-LAB	lab(92.99, -20.08, 64.69)
CIE-LCH	lch(92.99, 67.74, 107.25°)
OKLab	oklab(93.26% -0.0597 0.1493)
OKLCH	oklch(93.26% 0.161 111.8)
XYZ	xyz(69.1431, 82.9350, 25.4598)
Luminance	0.8293 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF368 #6F68F3

analogous

#F3B568 #ECF368 #A6F368

triadic

#ECF368 #68ECF3 #F368EC

tetradic

#ECF368 #68F3B5 #6F68F3 #F368A6

square

#ECF368 #68F3B5 #6F68F3 #F368A6

split-complementary

#ECF368 #68A6F3 #B568F3

monochromatic

#C6D011 #E5EE2F #ECF368 #F3F8A1 #FAFCD9

Accessibility & contrast

On white

1.19

#ECF368 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.59

#ECF368 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF368

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF368	#FFFFFF	#000000	##000000
##ECF368	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)

#FFE959

Deuteranopia (green-blind)

#FFED70

Tritanopia (blue-blind)

#FAE6D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf368;
/* rgb */ color: rgb(236, 243, 104);
/* oklch */ color: oklch(93.3% 0.161 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f698',
    500: '#ecf368',
    950: '#000000',
  },
}

SCSS

$custom: #ecf368;
$custom-light: #f5f698;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf368",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 104
  },
  "hsl": {
    "h": 63.022,
    "s": 85.276,
    "l": 68.039
  },
  "oklch": {
    "l": 0.93259,
    "c": 0.16076,
    "h": 111.8
  },
  "luminance": 0.82934
}

Semantic roles & 50–950 ramp

primary

#ECF368

secondary

#3B34CC

accent

#04E20F

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF368

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

Preview Lab → · Contrast checker → · Palette generator →