#ECF177#ECF177

#ECF177 is a very light, vivid yellow. Relative luminance 0.821; OKLCH L 93.0% C 0.145 H 111.0°. Best body text is #000000 at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#ECF177
RGB	rgb(236, 241, 119)
HSL	hsl(62, 81%, 71%)
HSV	hsv(62, 51%, 95%)
CMYK	cmyk(2.1%, 0%, 50.6%, 5.5%)
CIE-LAB	lab(92.61, -17.95, 57.64)
CIE-LCH	lch(92.61, 60.37, 107.29°)
OKLab	oklab(93.01% -0.0521 0.1357)
OKLCH	oklch(93.01% 0.145 111)
XYZ	xyz(69.3786, 82.0768, 29.6369)
Luminance	0.8207 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF177 #7C77F1

analogous

#F1B977 #ECF177 #AFF177

triadic

#ECF177 #77ECF1 #F177EC

tetradic

#ECF177 #77F1B9 #7C77F1 #F177AF

square

#ECF177 #77F1B9 #7C77F1 #F177AF

split-complementary

#ECF177 #77AFF1 #B977F1

monochromatic

#D0D716 #E4EB40 #ECF177 #F4F7AE #FBFCE3

Accessibility & contrast

On white

1.21

#ECF177 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.42

#ECF177 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF177

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF177	#FFFFFF	#000000	##000000
##ECF177	1.00	1.21	17.42	17.42
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.42	21.00	1.00	1.00
##000000	17.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE86B

Deuteranopia (green-blind)

#FFEC7D

Tritanopia (blue-blind)

#FAE5D5

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf177;
/* rgb */ color: rgb(236, 241, 119);
/* oklch */ color: oklch(93.0% 0.145 111.0);

Tailwind

colors: {
  custom: {
    50: '#f4f5a1',
    500: '#ecf177',
    950: '#000000',
  },
}

SCSS

$custom: #ecf177;
$custom-light: #f4f5a1;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf177",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 119
  },
  "hsl": {
    "h": 62.459,
    "s": 81.333,
    "l": 70.588
  },
  "oklch": {
    "l": 0.93005,
    "c": 0.14536,
    "h": 111
  },
  "luminance": 0.82075
}

Semantic roles & 50–950 ramp

primary

#ECF177

secondary

#4741CB

accent

#08DE11

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF177

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

Preview Lab → · Contrast checker → · Palette generator →