#ECF374#ECF374

#ECF374 is a very light, vivid yellow. Relative luminance 0.832; OKLCH L 93.4% C 0.150 H 111.8°. Best body text is #000000 at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#ECF374
RGB	rgb(236, 243, 116)
HSL	hsl(63, 84%, 70%)
HSV	hsv(63, 52%, 95%)
CMYK	cmyk(2.9%, 0%, 52.3%, 4.7%)
CIE-LAB	lab(93.10, -19.16, 59.57)
CIE-LCH	lch(93.10, 62.58, 107.83°)
OKLab	oklab(93.39% -0.0559 0.1396)
OKLCH	oklch(93.39% 0.15 111.8)
XYZ	xyz(69.7965, 83.1964, 28.9014)
Luminance	0.8319 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF374 #7B74F3

analogous

#F3BA74 #ECF374 #ACF374

triadic

#ECF374 #74ECF3 #F374EC

tetradic

#ECF374 #74F3BA #7B74F3 #F374AC

square

#ECF374 #74F3BA #7B74F3 #F374AC

split-complementary

#ECF374 #74ACF3 #BA74F3

monochromatic

#CFDA13 #E4EE3C #ECF374 #F4F8AC #FBFDE3

Accessibility & contrast

On white

1.19

#ECF374 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.64

#ECF374 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF374

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF374	#FFFFFF	#000000	##000000
##ECF374	1.00	1.19	17.64	17.64
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.64	21.00	1.00	1.00
##000000	17.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE968

Deuteranopia (green-blind)

#FFED7B

Tritanopia (blue-blind)

#FAE6D7

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf374;
/* rgb */ color: rgb(236, 243, 116);
/* oklch */ color: oklch(93.4% 0.150 111.8);

Tailwind

colors: {
  custom: {
    50: '#f4f69f',
    500: '#ecf374',
    950: '#000000',
  },
}

SCSS

$custom: #ecf374;
$custom-light: #f4f69f;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf374",
  "rgb": {
    "r": 236,
    "g": 243,
    "b": 116
  },
  "hsl": {
    "h": 63.307,
    "s": 84.106,
    "l": 70.392
  },
  "oklch": {
    "l": 0.93387,
    "c": 0.15035,
    "h": 111.8
  },
  "luminance": 0.83195
}

Semantic roles & 50–950 ramp

primary

#ECF374

secondary

#463ECD

accent

#05E111

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF374

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

Preview Lab → · Contrast checker → · Palette generator →