#ECF771#ECF771

#ECF771 is a very light, vivid yellow. Relative luminance 0.855; OKLCH L 94.2% C 0.158 H 113.3°. Best body text is #000000 at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#ECF771
RGB	rgb(236, 247, 113)
HSL	hsl(65, 89%, 71%)
HSV	hsv(65, 54%, 97%)
CMYK	cmyk(4.5%, 0%, 54.3%, 3.1%)
CIE-LAB	lab(94.12, -21.33, 62.07)
CIE-LCH	lch(94.12, 65.64, 108.96°)
OKLab	oklab(94.19% -0.0623 0.1447)
OKLCH	oklch(94.19% 0.158 113.3)
XYZ	xyz(70.8349, 85.5479, 28.4005)
Luminance	0.8555 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF771 #7C71F7

analogous

#F7BF71 #ECF771 #A9F771

triadic

#ECF771 #71ECF7 #F771EC

tetradic

#ECF771 #71F7BF #7C71F7 #F771A9

square

#ECF771 #71F7BF #7C71F7 #F771A9

split-complementary

#ECF771 #71A9F7 #BF71F7

monochromatic

#D0E10D #E4F437 #ECF771 #F4FAAB #FBFDE2

Accessibility & contrast

On white

1.16

#ECF771 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.11

#ECF771 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF771

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF771	#FFFFFF	#000000	##000000
##ECF771	1.00	1.16	18.11	18.11
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.11	21.00	1.00	1.00
##000000	18.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED63

Deuteranopia (green-blind)

#FFF079

Tritanopia (blue-blind)

#FAEAD9

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf771;
/* rgb */ color: rgb(236, 247, 113);
/* oklch */ color: oklch(94.2% 0.158 113.3);

Tailwind

colors: {
  custom: {
    50: '#f5f99e',
    500: '#ecf771',
    950: '#000000',
  },
}

SCSS

$custom: #ecf771;
$custom-light: #f5f99e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf771",
  "rgb": {
    "r": 236,
    "g": 247,
    "b": 113
  },
  "hsl": {
    "h": 64.925,
    "s": 89.333,
    "l": 70.588
  },
  "oklch": {
    "l": 0.94191,
    "c": 0.15752,
    "h": 113.3
  },
  "luminance": 0.85547
}

Semantic roles & 50–950 ramp

primary

#ECF771

secondary

#473AD2

accent

#00E613

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF771

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

Preview Lab → · Contrast checker → · Palette generator →