#ECF45D#ECF45D

#ECF45D is a very light, vivid yellow. Relative luminance 0.833; OKLCH L 93.4% C 0.170 H 112.1°. Best body text is #000000 at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#ECF45D
RGB	rgb(236, 244, 93)
HSL	hsl(63, 87%, 66%)
HSV	hsv(63, 62%, 96%)
CMYK	cmyk(3.3%, 0%, 61.9%, 4.3%)
CIE-LAB	lab(93.16, -21.30, 69.42)
CIE-LCH	lch(93.16, 72.62, 107.06°)
OKLab	oklab(93.37% -0.0643 0.1579)
OKLCH	oklch(93.37% 0.17 112.1)
XYZ	xyz(68.9204, 83.3261, 22.8068)
Luminance	0.8333 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF45D #655DF4

analogous

#F4B05D #ECF45D #A0F45D

triadic

#ECF45D #5DECF4 #F45DEC

tetradic

#ECF45D #5DF4B0 #655DF4 #F45DA0

square

#ECF45D #5DF4B0 #655DF4 #F45DA0

split-complementary

#ECF45D #5DA0F4 #B05DF4

monochromatic

#BFC90E #E5F024 #ECF45D #F3F896 #F9FCD0

Accessibility & contrast

On white

1.19

#ECF45D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.67

#ECF45D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF45D

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF45D	#FFFFFF	#000000	##000000
##ECF45D	1.00	1.19	17.67	17.67
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.67	21.00	1.00	1.00
##000000	17.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE94A

Deuteranopia (green-blind)

#FFED67

Tritanopia (blue-blind)

#FBE6D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf45d;
/* rgb */ color: rgb(236, 244, 93);
/* oklch */ color: oklch(93.4% 0.170 112.1);

Tailwind

colors: {
  custom: {
    50: '#f5f791',
    500: '#ecf45d',
    950: '#000000',
  },
}

SCSS

$custom: #ecf45d;
$custom-light: #f5f791;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf45d",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 93
  },
  "hsl": {
    "h": 63.179,
    "s": 87.283,
    "l": 66.078
  },
  "oklch": {
    "l": 0.93366,
    "c": 0.17047,
    "h": 112.1
  },
  "luminance": 0.83325
}

Semantic roles & 50–950 ramp

primary

#ECF45D

secondary

#3830C6

accent

#02E40E

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECF45D

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

Preview Lab → · Contrast checker → · Palette generator →