#ECF364#ECF364

#ECF364 is a very light, vivid yellow. Relative luminance 0.829; OKLCH L 93.2% C 0.164 H 111.8°. Best body text is #000000 at 17.57:1 contrast (WCAG AA passes).

Color values

HEX	#ECF364
RGB	rgb(236, 243, 100)
HSL	hsl(63, 86%, 67%)
HSV	hsv(63, 59%, 95%)
CMYK	cmyk(2.9%, 0%, 58.8%, 4.7%)
CIE-LAB	lab(92.95, -20.36, 66.34)
CIE-LCH	lch(92.95, 69.40, 107.06°)
OKLab	oklab(93.22% -0.0609 0.1523)
OKLCH	oklch(93.22% 0.164 111.8)
XYZ	xyz(68.9447, 82.8557, 24.4150)
Luminance	0.8285 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF364 #6B64F3

analogous

#F3B364 #ECF364 #A5F364

triadic

#ECF364 #64ECF3 #F364EC

tetradic

#ECF364 #64F3B3 #6B64F3 #F364A5

square

#ECF364 #64F3B3 #6B64F3 #F364A5

split-complementary

#ECF364 #64A5F3 #B364F3

monochromatic

#C4CD10 #E5EF2B #ECF364 #F3F79D #FAFCD6

Accessibility & contrast

On white

1.20

#ECF364 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.57

#ECF364 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF364

17.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF364	#FFFFFF	#000000	##000000
##ECF364	1.00	1.20	17.57	17.57
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.57	21.00	1.00	1.00
##000000	17.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE954

Deuteranopia (green-blind)

#FFED6D

Tritanopia (blue-blind)

#FBE5D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf364;
/* rgb */ color: rgb(236, 243, 100);
/* oklch */ color: oklch(93.2% 0.164 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f695',
    500: '#ecf364',
    950: '#000000',
  },
}

SCSS

$custom: #ecf364;
$custom-light: #f5f695;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf364",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 100
  },
  "hsl": {
    "h": 62.937,
    "s": 85.629,
    "l": 67.255
  },
  "oklch": {
    "l": 0.9322,
    "c": 0.16401,
    "h": 111.8
  },
  "luminance": 0.82854
}

Semantic roles & 50–950 ramp

primary

#ECF364

secondary

#3A32C9

accent

#03E20E

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF364

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

Preview Lab → · Contrast checker → · Palette generator →