#ECF490#ECF490

#ECF490 is a very light, vivid yellow. Relative luminance 0.845; OKLCH L 94.0% C 0.124 H 112.5°. Best body text is #000000 at 17.91:1 contrast (WCAG AA passes).

Color values

HEX	#ECF490
RGB	rgb(236, 244, 144)
HSL	hsl(65, 82%, 76%)
HSV	hsv(65, 41%, 96%)
CMYK	cmyk(3.3%, 0%, 41%, 4.3%)
CIE-LAB	lab(93.69, -17.05, 47.19)
CIE-LCH	lch(93.69, 50.18, 109.86°)
OKLab	oklab(93.96% -0.0474 0.1144)
OKLCH	oklch(93.96% 0.124 112.5)
XYZ	xyz(71.9776, 84.5489, 38.9080)
Luminance	0.8455 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF490 #9890F4

analogous

#F4CA90 #ECF490 #BAF490

triadic

#ECF490 #90ECF4 #F490EC

tetradic

#ECF490 #90F4CA #9890F4 #F490BA

square

#ECF490 #90F4CA #9890F4 #F490BA

split-complementary

#ECF490 #90BAF4 #CA90F4

monochromatic

#D9E921 #E2EE58 #ECF490 #F6FAC8 #FAFCE3

Accessibility & contrast

On white

1.17

#ECF490 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.91

#ECF490 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF490

17.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF490	#FFFFFF	#000000	##000000
##ECF490	1.00	1.17	17.91	17.91
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.91	21.00	1.00	1.00
##000000	17.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEC88

Deuteranopia (green-blind)

#FFEE95

Tritanopia (blue-blind)

#F7E9DC

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #ecf490;
/* rgb */ color: rgb(236, 244, 144);
/* oklch */ color: oklch(94.0% 0.124 112.5);

Tailwind

colors: {
  custom: {
    50: '#f3f7b2',
    500: '#ecf490',
    950: '#000000',
  },
}

SCSS

$custom: #ecf490;
$custom-light: #f3f7b2;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf490",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 144
  },
  "hsl": {
    "h": 64.8,
    "s": 81.967,
    "l": 76.078
  },
  "oklch": {
    "l": 0.93962,
    "c": 0.1238,
    "h": 112.5
  },
  "luminance": 0.84548
}

Semantic roles & 50–950 ramp

primary

#ECF490

secondary

#6157D1

accent

#07DE18

background

#FFFFFD

surface

#FEFEF8

border

#D6D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #ECF490

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

Preview Lab → · Contrast checker → · Palette generator →