#ECF971#ECF971

#ECF971 is a very light, vivid yellow. Relative luminance 0.868; OKLCH L 94.6% C 0.160 H 114.0°. Best body text is #000000 at 18.36:1 contrast (WCAG AA passes).

Color values

HEX	#ECF971
RGB	rgb(236, 249, 113)
HSL	hsl(66, 92%, 71%)
HSV	hsv(66, 55%, 98%)
CMYK	cmyk(5.2%, 0%, 54.6%, 2.4%)
CIE-LAB	lab(94.64, -22.28, 62.67)
CIE-LCH	lch(94.64, 66.52, 109.57°)
OKLab	oklab(94.61% -0.065 0.1459)
OKLCH	oklch(94.61% 0.16 114)
XYZ	xyz(71.4498, 86.7777, 28.6054)
Luminance	0.8678 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF971 #7E71F9

analogous

#F9C271 #ECF971 #A8F971

triadic

#ECF971 #71ECF9 #F971EC

tetradic

#ECF971 #71F9C2 #7E71F9 #F971A8

square

#ECF971 #71F9C2 #7E71F9 #F971A8

split-complementary

#ECF971 #71A8F9 #C271F9

monochromatic

#D1E60A #E4F736 #ECF971 #F4FBAC #FBFEE2

Accessibility & contrast

On white

1.14

#ECF971 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.36

#ECF971 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF971

18.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF971	#FFFFFF	#000000	##000000
##ECF971	1.00	1.14	18.36	18.36
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.36	21.00	1.00	1.00
##000000	18.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE63

Deuteranopia (green-blind)

#FFF179

Tritanopia (blue-blind)

#F9ECDB

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf971;
/* rgb */ color: rgb(236, 249, 113);
/* oklch */ color: oklch(94.6% 0.160 114.0);

Tailwind

colors: {
  custom: {
    50: '#f5fb9e',
    500: '#ecf971',
    950: '#000000',
  },
}

SCSS

$custom: #ecf971;
$custom-light: #f5fb9e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf971",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 113
  },
  "hsl": {
    "h": 65.735,
    "s": 91.892,
    "l": 70.98
  },
  "oklch": {
    "l": 0.94611,
    "c": 0.15977,
    "h": 114
  },
  "luminance": 0.86776
}

Semantic roles & 50–950 ramp

primary

#ECF971

secondary

#493AD4

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF971

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

Preview Lab → · Contrast checker → · Palette generator →