#ECF18E#ECF18E

#ECF18E is a very light, vivid yellow. Relative luminance 0.827; OKLCH L 93.3% C 0.122 H 111.1°. Best body text is #000000 at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#ECF18E
RGB	rgb(236, 241, 142)
HSL	hsl(63, 78%, 75%)
HSV	hsv(63, 41%, 95%)
CMYK	cmyk(2.1%, 0%, 41.1%, 5.5%)
CIE-LAB	lab(92.88, -15.79, 47.15)
CIE-LCH	lch(92.88, 49.72, 108.52°)
OKLab	oklab(93.31% -0.044 0.1142)
OKLCH	oklch(93.31% 0.122 111.1)
XYZ	xyz(70.9308, 82.6977, 37.8116)
Luminance	0.8270 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF18E #938EF1

analogous

#F1C48E #ECF18E #BBF18E

triadic

#ECF18E #8EECF1 #F18EEC

tetradic

#ECF18E #8EF1C4 #938EF1 #F18EBB

square

#ECF18E #8EF1C4 #938EF1 #F18EBB

split-complementary

#ECF18E #8EBBF1 #C48EF1

monochromatic

#DAE421 #E3EA58 #ECF18E #F5F8C4 #FAFCE4

Accessibility & contrast

On white

1.20

#ECF18E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.54

#ECF18E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF18E

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF18E	#FFFFFF	#000000	##000000
##ECF18E	1.00	1.20	17.54	17.54
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.54	21.00	1.00	1.00
##000000	17.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE986

Deuteranopia (green-blind)

#FFEC93

Tritanopia (blue-blind)

#F8E6D9

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf18e;
/* rgb */ color: rgb(236, 241, 142);
/* oklch */ color: oklch(93.3% 0.122 111.1);

Tailwind

colors: {
  custom: {
    50: '#f3f5b0',
    500: '#ecf18e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf18e;
$custom-light: #f3f5b0;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf18e",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 142
  },
  "hsl": {
    "h": 63.03,
    "s": 77.953,
    "l": 75.098
  },
  "oklch": {
    "l": 0.93311,
    "c": 0.12234,
    "h": 111.1
  },
  "luminance": 0.82696
}

Semantic roles & 50–950 ramp

primary

#ECF18E

secondary

#5C56CD

accent

#0BDA16

background

#FFFFFD

surface

#FEFEF7

border

#D6D6D0

text

#171711

muted

#858581

Preview Lab

Preview with #ECF18E

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

Preview Lab → · Contrast checker → · Palette generator →