#ECF15A#ECF15A

#ECF15A is a very light, vivid yellow. Relative luminance 0.815; OKLCH L 92.7% C 0.170 H 111.1°. Best body text is #000000 at 17.30:1 contrast (WCAG AA passes).

Color values

HEX	#ECF15A
RGB	rgb(236, 241, 90)
HSL	hsl(62, 84%, 65%)
HSV	hsv(62, 63%, 95%)
CMYK	cmyk(2.1%, 0%, 62.7%, 5.5%)
CIE-LAB	lab(92.35, -20.05, 69.76)
CIE-LCH	lch(92.35, 72.59, 106.03°)
OKLab	oklab(92.71% -0.061 0.1582)
OKLCH	oklch(92.71% 0.17 111.1)
XYZ	xyz(67.8948, 81.4833, 21.8222)
Luminance	0.8148 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF15A #5F5AF1

analogous

#F1AB5A #ECF15A #A0F15A

triadic

#ECF15A #5AECF1 #F15AEC

tetradic

#ECF15A #5AF1AB #5F5AF1 #F15AA0

square

#ECF15A #5AF1AB #5F5AF1 #F15AA0

split-complementary

#ECF15A #5AA0F1 #AB5AF1

monochromatic

#BAC010 #E6EC22 #ECF15A #F2F692 #F9FBCB

Accessibility & contrast

On white

1.21

#ECF15A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.30

#ECF15A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF15A

17.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF15A	#FFFFFF	#000000	##000000
##ECF15A	1.00	1.21	17.30	17.30
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.30	21.00	1.00	1.00
##000000	17.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE746

Deuteranopia (green-blind)

#FFEB64

Tritanopia (blue-blind)

#FBE3D2

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #ecf15a;
/* rgb */ color: rgb(236, 241, 90);
/* oklch */ color: oklch(92.7% 0.170 111.1);

Tailwind

colors: {
  custom: {
    50: '#f5f58f',
    500: '#ecf15a',
    950: '#000000',
  },
}

SCSS

$custom: #ecf15a;
$custom-light: #f5f58f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf15a",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 90
  },
  "hsl": {
    "h": 61.987,
    "s": 84.358,
    "l": 64.902
  },
  "oklch": {
    "l": 0.92711,
    "c": 0.16955,
    "h": 111.1
  },
  "luminance": 0.81482
}

Semantic roles & 50–950 ramp

primary

#ECF15A

secondary

#3631BE

accent

#05E10C

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF15A

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

Preview Lab → · Contrast checker → · Palette generator →