#ECF56C#ECF56C

#ECF56C is a very light, vivid yellow. Relative luminance 0.842; OKLCH L 93.7% C 0.160 H 112.5°. Best body text is #000000 at 17.84:1 contrast (WCAG AA passes).

Color values

HEX	#ECF56C
RGB	rgb(236, 245, 108)
HSL	hsl(64, 87%, 69%)
HSV	hsv(64, 56%, 96%)
CMYK	cmyk(3.7%, 0%, 55.9%, 3.9%)
CIE-LAB	lab(93.55, -20.75, 63.60)
CIE-LCH	lch(93.55, 66.90, 108.07°)
OKLab	oklab(93.72% -0.0612 0.1474)
OKLCH	oklch(93.72% 0.16 112.5)
XYZ	xyz(69.9529, 84.2218, 26.7559)
Luminance	0.8422 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF56C #756CF5

analogous

#F5BA6C #ECF56C #A8F56C

triadic

#ECF56C #6CECF5 #F56CEC

tetradic

#ECF56C #6CF5BA #756CF5 #F56CA8

square

#ECF56C #6CF5BA #756CF5 #F56CA8

split-complementary

#ECF56C #6CA8F5 #BA6CF5

monochromatic

#CBD80F #E5F133 #ECF56C #F3F9A5 #FBFDDF

Accessibility & contrast

On white

1.18

#ECF56C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.84

#ECF56C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF56C

17.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF56C	#FFFFFF	#000000	##000000
##ECF56C	1.00	1.18	17.84	17.84
#FFFFFF	1.18	1.00	21.00	21.00
#000000	17.84	21.00	1.00	1.00
##000000	17.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB5D

Deuteranopia (green-blind)

#FFEE74

Tritanopia (blue-blind)

#FAE8D7

Achromatopsia (no color)

#ECECEC

Design tokens & code

CSS

--color: #ecf56c;
/* rgb */ color: rgb(236, 245, 108);
/* oklch */ color: oklch(93.7% 0.160 112.5);

Tailwind

colors: {
  custom: {
    50: '#f5f89a',
    500: '#ecf56c',
    950: '#000000',
  },
}

SCSS

$custom: #ecf56c;
$custom-light: #f5f89a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf56c",
  "rgb": {
    "r": 236,
    "g": 245,
    "b": 108
  },
  "hsl": {
    "h": 63.942,
    "s": 87.261,
    "l": 69.216
  },
  "oklch": {
    "l": 0.93719,
    "c": 0.15959,
    "h": 112.5
  },
  "luminance": 0.8422
}

Semantic roles & 50–950 ramp

primary

#ECF56C

secondary

#4137CF

accent

#02E411

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF56C

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

Preview Lab → · Contrast checker → · Palette generator →