#ECF188#ECF188

#ECF188 is a very light, vivid yellow. Relative luminance 0.825; OKLCH L 93.2% C 0.129 H 111.0°. Best body text is #000000 at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#ECF188
RGB	rgb(236, 241, 136)
HSL	hsl(63, 79%, 74%)
HSV	hsv(63, 44%, 95%)
CMYK	cmyk(2.1%, 0%, 43.6%, 5.5%)
CIE-LAB	lab(92.80, -16.40, 49.94)
CIE-LCH	lch(92.80, 52.56, 108.18°)
OKLab	oklab(93.23% -0.0462 0.1201)
OKLCH	oklch(93.23% 0.129 111)
XYZ	xyz(70.4924, 82.5223, 35.5027)
Luminance	0.8252 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF188 #8D88F1

analogous

#F1C288 #ECF188 #B8F188

triadic

#ECF188 #88ECF1 #F188EC

tetradic

#ECF188 #88F1C2 #8D88F1 #F188B8

square

#ECF188 #88F1C2 #8D88F1 #F188B8

split-complementary

#ECF188 #88B8F1 #C288F1

monochromatic

#DAE41B #E3EB51 #ECF188 #F5F7BF #FBFCE4

Accessibility & contrast

On white

1.20

#ECF188 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.50

#ECF188 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF188

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF188	#FFFFFF	#000000	##000000
##ECF188	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)

#FFE97F

Deuteranopia (green-blind)

#FFEC8D

Tritanopia (blue-blind)

#F8E6D8

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf188;
/* rgb */ color: rgb(236, 241, 136);
/* oklch */ color: oklch(93.2% 0.129 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5ac',
    500: '#ecf188',
    950: '#000000',
  },
}

SCSS

$custom: #ecf188;
$custom-light: #f4f5ac;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf188",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 136
  },
  "hsl": {
    "h": 62.857,
    "s": 78.947,
    "l": 73.922
  },
  "oklch": {
    "l": 0.93225,
    "c": 0.12863,
    "h": 111
  },
  "luminance": 0.82521
}

Semantic roles & 50–950 ramp

primary

#ECF188

secondary

#5650CD

accent

#0ADB14

background

#FFFFFD

surface

#FEFEF7

border

#D6D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF188

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

Preview Lab → · Contrast checker → · Palette generator →