#ECF988#ECF988

#ECF988 is a very light, vivid yellow. Relative luminance 0.874; OKLCH L 94.9% C 0.138 H 114.5°. Best body text is #000000 at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#ECF988
RGB	rgb(236, 249, 136)
HSL	hsl(67, 90%, 75%)
HSV	hsv(67, 45%, 98%)
CMYK	cmyk(5.2%, 0%, 45.4%, 2.4%)
CIE-LAB	lab(94.89, -20.27, 52.50)
CIE-LCH	lch(94.89, 56.28, 111.11°)
OKLab	oklab(94.89% -0.0572 0.1258)
OKLCH	oklch(94.89% 0.138 114.5)
XYZ	xyz(72.9126, 87.3628, 36.3095)
Luminance	0.8736 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF988 #9588F9

analogous

#F9CE88 #ECF988 #B3F988

triadic

#ECF988 #88ECF9 #F988EC

tetradic

#ECF988 #88F9CE #9588F9 #F988B3

square

#ECF988 #88F9CE #9588F9 #F988B3

split-complementary

#ECF988 #88B3F9 #CE88F9

monochromatic

#D9F313 #E3F64E #ECF988 #F5FCC2 #FAFEE2

Accessibility & contrast

On white

1.14

#ECF988 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.47

#ECF988 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF988

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF988	#FFFFFF	#000000	##000000
##ECF988	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)

#FFEF7E

Deuteranopia (green-blind)

#FFF18E

Tritanopia (blue-blind)

#F8EEDE

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf988;
/* rgb */ color: rgb(236, 249, 136);
/* oklch */ color: oklch(94.9% 0.138 114.5);

Tailwind

colors: {
  custom: {
    50: '#f4fbad',
    500: '#ecf988',
    950: '#000000',
  },
}

SCSS

$custom: #ecf988;
$custom-light: #f4fbad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf988",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 136
  },
  "hsl": {
    "h": 66.903,
    "s": 90.4,
    "l": 75.49
  },
  "oklch": {
    "l": 0.94889,
    "c": 0.13816,
    "h": 114.5
  },
  "luminance": 0.87362
}

Semantic roles & 50–950 ramp

primary

#ECF988

secondary

#5E4ED7

accent

#00E61A

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF988

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

Preview Lab → · Contrast checker → · Palette generator →