#ECF36D#ECF36D

#ECF36D is a very light, vivid yellow. Relative luminance 0.830; OKLCH L 93.3% C 0.157 H 111.8°. Best body text is #000000 at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#ECF36D
RGB	rgb(236, 243, 109)
HSL	hsl(63, 85%, 69%)
HSV	hsv(63, 55%, 95%)
CMYK	cmyk(2.9%, 0%, 55.1%, 4.7%)
CIE-LAB	lab(93.03, -19.71, 62.59)
CIE-LCH	lch(93.03, 65.62, 107.48°)
OKLab	oklab(93.31% -0.0582 0.1453)
OKLCH	oklch(93.31% 0.157 111.8)
XYZ	xyz(69.4046, 83.0396, 26.8372)
Luminance	0.8304 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF36D #746DF3

analogous

#F3B76D #ECF36D #A9F36D

triadic

#ECF36D #6DECF3 #F36DEC

tetradic

#ECF36D #6DF3B7 #746DF3 #F36DA9

square

#ECF36D #6DF3B7 #746DF3 #F36DA9

split-complementary

#ECF36D #6DA9F3 #B76DF3

monochromatic

#CAD411 #E5EE34 #ECF36D #F3F8A6 #FBFCDE

Accessibility & contrast

On white

1.19

#ECF36D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.61

#ECF36D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF36D

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF36D	#FFFFFF	#000000	##000000
##ECF36D	1.00	1.19	17.61	17.61
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.61	21.00	1.00	1.00
##000000	17.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE95F

Deuteranopia (green-blind)

#FFED75

Tritanopia (blue-blind)

#FAE6D6

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf36d;
/* rgb */ color: rgb(236, 243, 109);
/* oklch */ color: oklch(93.3% 0.157 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f69b',
    500: '#ecf36d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf36d;
$custom-light: #f5f69b;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf36d",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 109
  },
  "hsl": {
    "h": 63.134,
    "s": 84.81,
    "l": 69.02
  },
  "oklch": {
    "l": 0.9331,
    "c": 0.15654,
    "h": 111.8
  },
  "luminance": 0.83038
}

Semantic roles & 50–950 ramp

primary

#ECF36D

secondary

#4038CC

accent

#04E110

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF36D

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

Preview Lab → · Contrast checker → · Palette generator →