#ECF855#ECF855

#ECF855 is a very light, vivid yellow. Relative luminance 0.856; OKLCH L 94.1% C 0.180 H 113.4°. Best body text is #000000 at 18.12:1 contrast (WCAG AA passes).

Color values

HEX	#ECF855
RGB	rgb(236, 248, 85)
HSL	hsl(64, 92%, 65%)
HSV	hsv(64, 66%, 97%)
CMYK	cmyk(4.8%, 0%, 65.7%, 2.7%)
CIE-LAB	lab(94.15, -23.69, 73.56)
CIE-LCH	lch(94.15, 77.28, 107.85°)
OKLab	oklab(94.14% -0.0717 0.1655)
OKLCH	oklch(94.14% 0.18 113.4)
XYZ	xyz(69.8011, 85.6249, 21.4428)
Luminance	0.8562 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF855 #6155F8

analogous

#F8B255 #ECF855 #9BF855

triadic

#ECF855 #55ECF8 #F855EC

tetradic

#ECF855 #55F8B2 #6155F8 #F8559B

square

#ECF855 #55F8B2 #6155F8 #F8559B

split-complementary

#ECF855 #559BF8 #B255F8

monochromatic

#BCCA08 #E5F61A #ECF855 #F3FA90 #F9FDCB

Accessibility & contrast

On white

1.16

#ECF855 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.12

#ECF855 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF855

18.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF855	#FFFFFF	#000000	##000000
##ECF855	1.00	1.16	18.12	18.12
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.12	21.00	1.00	1.00
##000000	18.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED3D

Deuteranopia (green-blind)

#FFF061

Tritanopia (blue-blind)

#FBEAD7

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf855;
/* rgb */ color: rgb(236, 248, 85);
/* oklch */ color: oklch(94.1% 0.180 113.4);

Tailwind

colors: {
  custom: {
    50: '#f6fa8d',
    500: '#ecf855',
    950: '#000000',
  },
}

SCSS

$custom: #ecf855;
$custom-light: #f6fa8d;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf855",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 85
  },
  "hsl": {
    "h": 64.417,
    "s": 92.09,
    "l": 65.294
  },
  "oklch": {
    "l": 0.94144,
    "c": 0.18033,
    "h": 113.4
  },
  "luminance": 0.85624
}

Semantic roles & 50–950 ramp

primary

#ECF855

secondary

#362BC6

accent

#00E611

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF855

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

Preview Lab → · Contrast checker → · Palette generator →