#ECF187#ECF187

#ECF187 is a very light, vivid yellow. Relative luminance 0.825; OKLCH L 93.2% C 0.130 H 111.0°. Best body text is #000000 at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#ECF187
RGB	rgb(236, 241, 135)
HSL	hsl(63, 79%, 74%)
HSV	hsv(63, 44%, 95%)
CMYK	cmyk(2.1%, 0%, 44%, 5.5%)
CIE-LAB	lab(92.79, -16.49, 50.40)
CIE-LCH	lch(92.79, 53.03, 108.12°)
OKLab	oklab(93.21% -0.0465 0.121)
OKLCH	oklch(93.21% 0.13 111)
XYZ	xyz(70.4217, 82.4940, 35.1302)
Luminance	0.8249 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF187 #8C87F1

analogous

#F1C187 #ECF187 #B7F187

triadic

#ECF187 #87ECF1 #F187EC

tetradic

#ECF187 #87F1C1 #8C87F1 #F187B7

square

#ECF187 #87F1C1 #8C87F1 #F187B7

split-complementary

#ECF187 #87B7F1 #C187F1

monochromatic

#DAE31A #E3EB50 #ECF187 #F5F7BE #FBFCE4

Accessibility & contrast

On white

1.20

#ECF187 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.50

#ECF187 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF187

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF187	#FFFFFF	#000000	##000000
##ECF187	1.00	1.20	17.50	17.50
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.50	21.00	1.00	1.00
##000000	17.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE97E

Deuteranopia (green-blind)

#FFEC8C

Tritanopia (blue-blind)

#F8E6D8

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf187;
/* rgb */ color: rgb(236, 241, 135);
/* oklch */ color: oklch(93.2% 0.130 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5ac',
    500: '#ecf187',
    950: '#000000',
  },
}

SCSS

$custom: #ecf187;
$custom-light: #f4f5ac;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf187",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 135
  },
  "hsl": {
    "h": 62.83,
    "s": 79.104,
    "l": 73.725
  },
  "oklch": {
    "l": 0.93211,
    "c": 0.12966,
    "h": 111
  },
  "luminance": 0.82493
}

Semantic roles & 50–950 ramp

primary

#ECF187

secondary

#5550CD

accent

#0ADB14

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF187

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

Preview Lab → · Contrast checker → · Palette generator →