#ECF989#ECF989

#ECF989 is a very light, vivid yellow. Relative luminance 0.874; OKLCH L 94.9% C 0.137 H 114.5°. Best body text is #000000 at 18.48:1 contrast (WCAG AA passes).

Color values

HEX	#ECF989
RGB	rgb(236, 249, 137)
HSL	hsl(67, 90%, 76%)
HSV	hsv(67, 45%, 98%)
CMYK	cmyk(5.2%, 0%, 45%, 2.4%)
CIE-LAB	lab(94.90, -20.17, 52.05)
CIE-LCH	lch(94.90, 55.82, 111.19°)
OKLab	oklab(94.9% -0.0568 0.1248)
OKLCH	oklch(94.9% 0.137 114.5)
XYZ	xyz(72.9840, 87.3913, 36.6855)
Luminance	0.8739 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF989 #9689F9

analogous

#F9CE89 #ECF989 #B4F989

triadic

#ECF989 #89ECF9 #F989EC

tetradic

#ECF989 #89F9CE #9689F9 #F989B4

square

#ECF989 #89F9CE #9689F9 #F989B4

split-complementary

#ECF989 #89B4F9 #CE89F9

monochromatic

#D9F315 #E3F64F #ECF989 #F5FCC3 #FAFEE2

Accessibility & contrast

On white

1.14

#ECF989 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.48

#ECF989 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF989

18.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF989	#FFFFFF	#000000	##000000
##ECF989	1.00	1.14	18.48	18.48
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.48	21.00	1.00	1.00
##000000	18.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF80

Deuteranopia (green-blind)

#FFF28F

Tritanopia (blue-blind)

#F8EEDF

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #ecf989;
/* rgb */ color: rgb(236, 249, 137);
/* oklch */ color: oklch(94.9% 0.137 114.5);

Tailwind

colors: {
  custom: {
    50: '#f4fbad',
    500: '#ecf989',
    950: '#000000',
  },
}

SCSS

$custom: #ecf989;
$custom-light: #f4fbad;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf989",
  "rgb": {
    "r": 236,
    "g": 249,
    "b": 137
  },
  "hsl": {
    "h": 66.964,
    "s": 90.323,
    "l": 75.686
  },
  "oklch": {
    "l": 0.94903,
    "c": 0.13714,
    "h": 114.5
  },
  "luminance": 0.8739
}

Semantic roles & 50–950 ramp

primary

#ECF989

secondary

#5F4FD7

accent

#00E61B

background

#FFFFFD

surface

#FFFFF7

border

#D7D7D0

text

#171710

muted

#858581

Preview Lab

Preview with #ECF989

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

Preview Lab → · Contrast checker → · Palette generator →