#ECF383#ECF383

#ECF383 is a very light, vivid yellow. Relative luminance 0.836; OKLCH L 93.6% C 0.136 H 111.9°. Best body text is #000000 at 17.71:1 contrast (WCAG AA passes).

Color values

HEX	#ECF383
RGB	rgb(236, 243, 131)
HSL	hsl(64, 82%, 73%)
HSV	hsv(64, 46%, 95%)
CMYK	cmyk(2.9%, 0%, 46.1%, 4.7%)
CIE-LAB	lab(93.27, -17.85, 52.87)
CIE-LCH	lch(93.27, 55.80, 108.66°)
OKLab	oklab(93.57% -0.0508 0.1262)
OKLCH	oklch(93.57% 0.136 111.9)
XYZ	xyz(70.7406, 83.5740, 33.8732)
Luminance	0.8357 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF383 #8A83F3

analogous

#F3C283 #ECF383 #B4F383

triadic

#ECF383 #83ECF3 #F383EC

tetradic

#ECF383 #83F3C2 #8A83F3 #F383B4

square

#ECF383 #83F3C2 #8A83F3 #F383B4

split-complementary

#ECF383 #83B4F3 #C283F3

monochromatic

#D8E516 #E3EE4B #ECF383 #F5F8BB #FBFCE3

Accessibility & contrast

On white

1.19

#ECF383 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.71

#ECF383 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF383

17.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF383	#FFFFFF	#000000	##000000
##ECF383	1.00	1.19	17.71	17.71
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.71	21.00	1.00	1.00
##000000	17.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA79

Deuteranopia (green-blind)

#FFED89

Tritanopia (blue-blind)

#F9E7D9

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf383;
/* rgb */ color: rgb(236, 243, 131);
/* oklch */ color: oklch(93.6% 0.136 111.9);

Tailwind

colors: {
  custom: {
    50: '#f4f7a9',
    500: '#ecf383',
    950: '#000000',
  },
}

SCSS

$custom: #ecf383;
$custom-light: #f4f7a9;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf383",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 131
  },
  "hsl": {
    "h": 63.75,
    "s": 82.353,
    "l": 73.333
  },
  "oklch": {
    "l": 0.93572,
    "c": 0.13604,
    "h": 111.9
  },
  "luminance": 0.83573
}

Semantic roles & 50–950 ramp

primary

#ECF383

secondary

#544BCF

accent

#07DF14

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF383

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

Preview Lab → · Contrast checker → · Palette generator →