#ECF871#ECF871

#ECF871 is a very light, vivid yellow. Relative luminance 0.862; OKLCH L 94.4% C 0.159 H 113.7°. Best body text is #000000 at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#ECF871
RGB	rgb(236, 248, 113)
HSL	hsl(65, 91%, 71%)
HSV	hsv(65, 54%, 97%)
CMYK	cmyk(4.8%, 0%, 54.4%, 2.7%)
CIE-LAB	lab(94.38, -21.81, 62.37)
CIE-LCH	lch(94.38, 66.07, 109.27°)
OKLab	oklab(94.4% -0.0637 0.1453)
OKLCH	oklch(94.4% 0.159 113.7)
XYZ	xyz(71.1416, 86.1611, 28.5027)
Luminance	0.8616 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF871 #7D71F8

analogous

#F8C071 #ECF871 #A8F871

triadic

#ECF871 #71ECF8 #F871EC

tetradic

#ECF871 #71F8C0 #7D71F8 #F871A8

square

#ECF871 #71F8C0 #7D71F8 #F871A8

split-complementary

#ECF871 #71A8F8 #C071F8

monochromatic

#D0E30B #E4F537 #ECF871 #F4FBAB #FBFEE2

Accessibility & contrast

On white

1.15

#ECF871 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.23

#ECF871 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF871

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF871	#FFFFFF	#000000	##000000
##ECF871	1.00	1.15	18.23	18.23
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.23	21.00	1.00	1.00
##000000	18.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED63

Deuteranopia (green-blind)

#FFF079

Tritanopia (blue-blind)

#F9EBDA

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecf871;
/* rgb */ color: rgb(236, 248, 113);
/* oklch */ color: oklch(94.4% 0.159 113.7);

Tailwind

colors: {
  custom: {
    50: '#f5fa9e',
    500: '#ecf871',
    950: '#000000',
  },
}

SCSS

$custom: #ecf871;
$custom-light: #f5fa9e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf871",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 113
  },
  "hsl": {
    "h": 65.333,
    "s": 90.604,
    "l": 70.784
  },
  "oklch": {
    "l": 0.94401,
    "c": 0.15864,
    "h": 113.7
  },
  "luminance": 0.8616
}

Semantic roles & 50–950 ramp

primary

#ECF871

secondary

#483AD3

accent

#00E614

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF871

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

Preview Lab → · Contrast checker → · Palette generator →