#ECF063#ECF063

#ECF063 is a very light, vivid yellow. Relative luminance 0.811; OKLCH L 92.6% C 0.162 H 110.7°. Best body text is #000000 at 17.21:1 contrast (WCAG AA passes).

Color values

HEX	#ECF063
RGB	rgb(236, 240, 99)
HSL	hsl(62, 82%, 66%)
HSV	hsv(62, 59%, 94%)
CMYK	cmyk(1.7%, 0%, 58.8%, 5.9%)
CIE-LAB	lab(92.16, -18.99, 65.89)
CIE-LCH	lch(92.16, 68.57, 106.07°)
OKLab	oklab(92.58% -0.0571 0.1512)
OKLCH	oklch(92.58% 0.162 110.7)
XYZ	xyz(68.0062, 81.0555, 23.8648)
Luminance	0.8105 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF063 #6763F0

analogous

#F0AE63 #ECF063 #A6F063

triadic

#ECF063 #63ECF0 #F063EC

tetradic

#ECF063 #63F0AE #6763F0 #F063A6

square

#ECF063 #63F0AE #6763F0 #F063A6

split-complementary

#ECF063 #63A6F0 #AE63F0

monochromatic

#C1C613 #E5EB2B #ECF063 #F3F59B #FAFBD3

Accessibility & contrast

On white

1.22

#ECF063 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.21

#ECF063 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF063

17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF063	#FFFFFF	#000000	##000000
##ECF063	1.00	1.22	17.21	17.21
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.21	21.00	1.00	1.00
##000000	17.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE653

Deuteranopia (green-blind)

#FFEB6B

Tritanopia (blue-blind)

#FBE2D2

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #ecf063;
/* rgb */ color: rgb(236, 240, 99);
/* oklch */ color: oklch(92.6% 0.162 110.7);

Tailwind

colors: {
  custom: {
    50: '#f5f495',
    500: '#ecf063',
    950: '#000000',
  },
}

SCSS

$custom: #ecf063;
$custom-light: #f5f495;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf063",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 99
  },
  "hsl": {
    "h": 61.702,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.92582,
    "c": 0.16162,
    "h": 110.7
  },
  "luminance": 0.81054
}

Semantic roles & 50–950 ramp

primary

#ECF063

secondary

#3834C3

accent

#07DF0D

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF063

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

Preview Lab → · Contrast checker → · Palette generator →