#ECFA4B#ECFA4B

#ECFA4B is a very light, vivid yellow. Relative luminance 0.867; OKLCH L 94.5% C 0.189 H 114.0°. Best body text is #000000 at 18.34:1 contrast (WCAG AA passes).

Color values

HEX	#ECFA4B
RGB	rgb(236, 250, 75)
HSL	hsl(65, 95%, 64%)
HSV	hsv(65, 70%, 98%)
CMYK	cmyk(5.6%, 0%, 70%, 2%)
CIE-LAB	lab(94.62, -25.16, 77.60)
CIE-LCH	lch(94.62, 81.57, 107.96°)
OKLab	oklab(94.5% -0.0767 0.1724)
OKLCH	oklch(94.5% 0.189 114)
XYZ	xyz(70.0497, 86.7135, 19.7025)
Luminance	0.8671 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFA4B #594BFA

analogous

#FAB04B #ECFA4B #94FA4B

triadic

#ECFA4B #4BECFA #FA4BEC

tetradic

#ECFA4B #4BFAB0 #594BFA #FA4B94

square

#ECFA4B #4BFAB0 #594BFA #FA4B94

split-complementary

#ECFA4B #4B94FA #B04BFA

monochromatic

#B6C505 #E6F80F #ECFA4B #F2FC87 #F9FDC2

Accessibility & contrast

On white

1.14

#ECFA4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.34

#ECFA4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFA4B

18.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFA4B	#FFFFFF	#000000	##000000
##ECFA4B	1.00	1.14	18.34	18.34
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.34	21.00	1.00	1.00
##000000	18.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE2C

Deuteranopia (green-blind)

#FFF159

Tritanopia (blue-blind)

#FBEBD8

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #ecfa4b;
/* rgb */ color: rgb(236, 250, 75);
/* oklch */ color: oklch(94.5% 0.189 114.0);

Tailwind

colors: {
  custom: {
    50: '#f6fb88',
    500: '#ecfa4b',
    950: '#000000',
  },
}

SCSS

$custom: #ecfa4b;
$custom-light: #f6fb88;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfa4b",
  "rgb": {
    "r": 236,
    "g": 250,
    "b": 75
  },
  "hsl": {
    "h": 64.8,
    "s": 94.595,
    "l": 63.725
  },
  "oklch": {
    "l": 0.94496,
    "c": 0.1887,
    "h": 114
  },
  "luminance": 0.86712
}

Semantic roles & 50–950 ramp

primary

#ECFA4B

secondary

#3427C2

accent

#00E612

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #ECFA4B

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

Preview Lab → · Contrast checker → · Palette generator →