#ECF987#ECF987

#ECF987 is a very light, vivid yellow. Relative luminance 0.873; OKLCH L 94.9% C 0.139 H 114.4°. Best body text is #000000 at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#ECF987
RGB	rgb(236, 249, 135)
HSL	hsl(67, 90%, 75%)
HSV	hsv(67, 46%, 98%)
CMYK	cmyk(5.2%, 0%, 45.8%, 2.4%)
CIE-LAB	lab(94.88, -20.37, 52.96)
CIE-LCH	lch(94.88, 56.74, 111.04°)
OKLab	oklab(94.88% -0.0576 0.1267)
OKLCH	oklch(94.88% 0.139 114.4)
XYZ	xyz(72.8419, 87.3345, 35.9369)
Luminance	0.8733 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF987 #9487F9

analogous

#F9CD87 #ECF987 #B3F987

triadic

#ECF987 #87ECF9 #F987EC

tetradic

#ECF987 #87F9CD #9487F9 #F987B3

square

#ECF987 #87F9CD #9487F9 #F987B3

split-complementary

#ECF987 #87B3F9 #CD87F9

monochromatic

#DAF312 #E3F64D #ECF987 #F5FCC1 #FAFEE2

Accessibility & contrast

On white

1.14

#ECF987 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.47

#ECF987 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF987

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF987	#FFFFFF	#000000	##000000
##ECF987	1.00	1.14	18.47	18.47
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.47	21.00	1.00	1.00
##000000	18.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF7D

Deuteranopia (green-blind)

#FFF18D

Tritanopia (blue-blind)

#F8EEDE

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf987;
/* rgb */ color: rgb(236, 249, 135);
/* oklch */ color: oklch(94.9% 0.139 114.4);

Tailwind

colors: {
  custom: {
    50: '#f4fbac',
    500: '#ecf987',
    950: '#000000',
  },
}

SCSS

$custom: #ecf987;
$custom-light: #f4fbac;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf987",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 135
  },
  "hsl": {
    "h": 66.842,
    "s": 90.476,
    "l": 75.294
  },
  "oklch": {
    "l": 0.94876,
    "c": 0.13916,
    "h": 114.4
  },
  "luminance": 0.87334
}

Semantic roles & 50–950 ramp

primary

#ECF987

secondary

#5D4DD7

accent

#00E61A

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF987

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

Preview Lab → · Contrast checker → · Palette generator →