#ECF35E#ECF35E

#ECF35E is a very light, vivid yellow. Relative luminance 0.827; OKLCH L 93.2% C 0.169 H 111.8°. Best body text is #000000 at 17.55:1 contrast (WCAG AA passes).

Color values

HEX	#ECF35E
RGB	rgb(236, 243, 94)
HSL	hsl(63, 86%, 66%)
HSV	hsv(63, 61%, 95%)
CMYK	cmyk(2.9%, 0%, 61.3%, 4.7%)
CIE-LAB	lab(92.90, -20.76, 68.75)
CIE-LCH	lch(92.90, 71.82, 106.80°)
OKLab	oklab(93.17% -0.0626 0.1566)
OKLCH	oklch(93.17% 0.169 111.8)
XYZ	xyz(68.6649, 82.7438, 22.9415)
Luminance	0.8274 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF35E #655EF3

analogous

#F3AF5E #ECF35E #A1F35E

triadic

#ECF35E #5EECF3 #F35EEC

tetradic

#ECF35E #5EF3AF #655EF3 #F35EA1

square

#ECF35E #5EF3AF #655EF3 #F35EA1

split-complementary

#ECF35E #5EA1F3 #AF5EF3

monochromatic

#BFC80F #E5EF25 #ECF35E #F3F797 #F9FBD0

Accessibility & contrast

On white

1.20

#ECF35E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.55

#ECF35E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF35E

17.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF35E	#FFFFFF	#000000	##000000
##ECF35E	1.00	1.20	17.55	17.55
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.55	21.00	1.00	1.00
##000000	17.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE94C

Deuteranopia (green-blind)

#FFED67

Tritanopia (blue-blind)

#FBE5D4

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf35e;
/* rgb */ color: rgb(236, 243, 94);
/* oklch */ color: oklch(93.2% 0.169 111.8);

Tailwind

colors: {
  custom: {
    50: '#f5f692',
    500: '#ecf35e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf35e;
$custom-light: #f5f692;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf35e",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 94
  },
  "hsl": {
    "h": 62.819,
    "s": 86.127,
    "l": 66.078
  },
  "oklch": {
    "l": 0.93165,
    "c": 0.16866,
    "h": 111.8
  },
  "luminance": 0.82742
}

Semantic roles & 50–950 ramp

primary

#ECF35E

secondary

#3831C5

accent

#03E30D

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECF35E

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

Preview Lab → · Contrast checker → · Palette generator →