#ECF055#ECF055

#ECF055 is a very light, vivid yellow. Relative luminance 0.808; OKLCH L 92.5% C 0.172 H 110.8°. Best body text is #000000 at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#ECF055
RGB	rgb(236, 240, 85)
HSL	hsl(62, 84%, 64%)
HSV	hsv(62, 65%, 94%)
CMYK	cmyk(1.7%, 0%, 64.6%, 5.9%)
CIE-LAB	lab(92.05, -19.86, 71.40)
CIE-LCH	lch(92.05, 74.11, 105.55°)
OKLab	oklab(92.46% -0.061 0.1609)
OKLCH	oklch(92.46% 0.172 110.8)
XYZ	xyz(67.3939, 80.8106, 20.6404)
Luminance	0.8081 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF055 #5955F0

analogous

#F0A655 #ECF055 #9EF055

triadic

#ECF055 #55ECF0 #F055EC

tetradic

#ECF055 #55F0A6 #5955F0 #F0559E

square

#ECF055 #55F0A6 #5955F0 #F0559E

split-complementary

#ECF055 #559EF0 #A655F0

monochromatic

#B6BA10 #E6EB1D #ECF055 #F2F58D #F9FAC5

Accessibility & contrast

On white

1.22

#ECF055 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.16

#ECF055 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF055

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF055	#FFFFFF	#000000	##000000
##ECF055	1.00	1.22	17.16	17.16
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.16	21.00	1.00	1.00
##000000	17.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE63F

Deuteranopia (green-blind)

#FFEA5F

Tritanopia (blue-blind)

#FCE2D0

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #ecf055;
/* rgb */ color: rgb(236, 240, 85);
/* oklch */ color: oklch(92.5% 0.172 110.8);

Tailwind

colors: {
  custom: {
    50: '#f5f48c',
    500: '#ecf055',
    950: '#000000',
  },
}

SCSS

$custom: #ecf055;
$custom-light: #f5f48c;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf055",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 85
  },
  "hsl": {
    "h": 61.548,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.9246,
    "c": 0.17208,
    "h": 110.8
  },
  "luminance": 0.80809
}

Semantic roles & 50–950 ramp

primary

#ECF055

secondary

#3430B9

accent

#05E00B

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF055

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

Preview Lab → · Contrast checker → · Palette generator →