#ECF859#ECF859

#ECF859 is a very light, vivid yellow. Relative luminance 0.857; OKLCH L 94.2% C 0.178 H 113.5°. Best body text is #000000 at 18.14:1 contrast (WCAG AA passes).

Color values

HEX	#ECF859
RGB	rgb(236, 248, 89)
HSL	hsl(65, 92%, 66%)
HSV	hsv(65, 64%, 97%)
CMYK	cmyk(4.8%, 0%, 64.1%, 2.7%)
CIE-LAB	lab(94.18, -23.46, 72.07)
CIE-LCH	lch(94.18, 75.79, 108.03°)
OKLab	oklab(94.18% -0.0707 0.1629)
OKLCH	oklch(94.18% 0.178 113.5)
XYZ	xyz(69.9645, 85.6903, 22.3035)
Luminance	0.8569 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF859 #6559F8

analogous

#F8B459 #ECF859 #9CF859

triadic

#ECF859 #59ECF8 #F859EC

tetradic

#ECF859 #59F8B4 #6559F8 #F8599C

square

#ECF859 #59F8B4 #6559F8 #F8599C

split-complementary

#ECF859 #599CF8 #B459F8

monochromatic

#BFCE09 #E5F61E #ECF859 #F3FA94 #F9FDCE

Accessibility & contrast

On white

1.16

#ECF859 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.14

#ECF859 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF859

18.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF859	#FFFFFF	#000000	##000000
##ECF859	1.00	1.16	18.14	18.14
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.14	21.00	1.00	1.00
##000000	18.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFED43

Deuteranopia (green-blind)

#FFF064

Tritanopia (blue-blind)

#FBEAD8

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #ecf859;
/* rgb */ color: rgb(236, 248, 89);
/* oklch */ color: oklch(94.2% 0.178 113.5);

Tailwind

colors: {
  custom: {
    50: '#f5fa8f',
    500: '#ecf859',
    950: '#000000',
  },
}

SCSS

$custom: #ecf859;
$custom-light: #f5fa8f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf859",
  "rgb": {
    "r": 236,
    "g": 248,
    "b": 89
  },
  "hsl": {
    "h": 64.528,
    "s": 91.908,
    "l": 66.078
  },
  "oklch": {
    "l": 0.94175,
    "c": 0.17758,
    "h": 113.5
  },
  "luminance": 0.85689
}

Semantic roles & 50–950 ramp

primary

#ECF859

secondary

#382CC9

accent

#00E611

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF859

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

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