#ECF058#ECF058

#ECF058 is a very light, vivid yellow. Relative luminance 0.809; OKLCH L 92.5% C 0.170 H 110.7°. Best body text is #000000 at 17.17:1 contrast (WCAG AA passes).

Color values

HEX	#ECF058
RGB	rgb(236, 240, 88)
HSL	hsl(62, 84%, 64%)
HSV	hsv(62, 63%, 94%)
CMYK	cmyk(1.7%, 0%, 63.3%, 5.9%)
CIE-LAB	lab(92.07, -19.69, 70.26)
CIE-LCH	lch(92.07, 72.96, 105.65°)
OKLab	oklab(92.49% -0.0602 0.1589)
OKLCH	oklch(92.49% 0.17 110.7)
XYZ	xyz(67.5156, 80.8593, 21.2815)
Luminance	0.8086 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF058 #5C58F0

analogous

#F0A858 #ECF058 #A0F058

triadic

#ECF058 #58ECF0 #F058EC

tetradic

#ECF058 #58F0A8 #5C58F0 #F058A0

square

#ECF058 #58F0A8 #5C58F0 #F058A0

split-complementary

#ECF058 #58A0F0 #A858F0

monochromatic

#B8BD11 #E6EB20 #ECF058 #F2F590 #F9FAC8

Accessibility & contrast

On white

1.22

#ECF058 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.17

#ECF058 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF058

17.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF058	#FFFFFF	#000000	##000000
##ECF058	1.00	1.22	17.17	17.17
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.17	21.00	1.00	1.00
##000000	17.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE644

Deuteranopia (green-blind)

#FFEA62

Tritanopia (blue-blind)

#FBE2D1

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #ecf058;
/* rgb */ color: rgb(236, 240, 88);
/* oklch */ color: oklch(92.5% 0.170 110.7);

Tailwind

colors: {
  custom: {
    50: '#f5f48e',
    500: '#ecf058',
    950: '#000000',
  },
}

SCSS

$custom: #ecf058;
$custom-light: #f5f48e;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf058",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 88
  },
  "hsl": {
    "h": 61.579,
    "s": 83.516,
    "l": 64.314
  },
  "oklch": {
    "l": 0.92485,
    "c": 0.16996,
    "h": 110.7
  },
  "luminance": 0.80858
}

Semantic roles & 50–950 ramp

primary

#ECF058

secondary

#3531BB

accent

#06E00B

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #ECF058

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

Preview Lab → · Contrast checker → · Palette generator →