#ECFB5F#ECFB5F

#ECFB5F is a very light, vivid yellow. Relative luminance 0.877; OKLCH L 94.9% C 0.176 H 114.5°. Best body text is #000000 at 18.53:1 contrast (WCAG AA passes).

Color values

HEX	#ECFB5F
RGB	rgb(236, 251, 95)
HSL	hsl(66, 95%, 68%)
HSV	hsv(66, 62%, 98%)
CMYK	cmyk(6%, 0%, 62.2%, 1.6%)
CIE-LAB	lab(95.02, -24.51, 70.60)
CIE-LCH	lch(95.02, 74.73, 109.14°)
OKLab	oklab(94.86% -0.0731 0.1606)
OKLCH	oklch(94.86% 0.176 114.5)
XYZ	xyz(71.1565, 87.6547, 23.9949)
Luminance	0.8765 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECFB5F #6E5FFB

analogous

#FBBC5F #ECFB5F #9EFB5F

triadic

#ECFB5F #5FECFB #FB5FEC

tetradic

#ECFB5F #5FFBBC #6E5FFB #FB5F9E

square

#ECFB5F #5FFBBC #6E5FFB #FB5F9E

split-complementary

#ECFB5F #5F9EFB #BC5FFB

monochromatic

#C6DA05 #E5FA23 #ECFB5F #F3FC9B #FAFED6

Accessibility & contrast

On white

1.13

#ECFB5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.53

#ECFB5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECFB5F

18.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECFB5F	#FFFFFF	#000000	##000000
##ECFB5F	1.00	1.13	18.53	18.53
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.53	21.00	1.00	1.00
##000000	18.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF4B

Deuteranopia (green-blind)

#FFF269

Tritanopia (blue-blind)

#FAEDDB

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #ecfb5f;
/* rgb */ color: rgb(236, 251, 95);
/* oklch */ color: oklch(94.9% 0.176 114.5);

Tailwind

colors: {
  custom: {
    50: '#f5fc93',
    500: '#ecfb5f',
    950: '#000000',
  },
}

SCSS

$custom: #ecfb5f;
$custom-light: #f5fc93;
$custom-dark: #000000;

JSON

{
  "hex": "#ecfb5f",
  "rgb": {
    "r": 236,
    "g": 251,
    "b": 95
  },
  "hsl": {
    "h": 65.769,
    "s": 95.122,
    "l": 67.843
  },
  "oklch": {
    "l": 0.94858,
    "c": 0.17647,
    "h": 114.5
  },
  "luminance": 0.87653
}

Semantic roles & 50–950 ramp

primary

#ECFB5F

secondary

#3B2AD4

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECFB5F

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

Preview Lab → · Contrast checker → · Palette generator →