#ECF45F#ECF45F

#ECF45F is a very light, vivid yellow. Relative luminance 0.834; OKLCH L 93.4% C 0.169 H 112.1°. Best body text is #000000 at 17.67:1 contrast (WCAG AA passes).

Color values

HEX	#ECF45F
RGB	rgb(236, 244, 95)
HSL	hsl(63, 87%, 66%)
HSV	hsv(63, 61%, 96%)
CMYK	cmyk(3.3%, 0%, 61.1%, 4.3%)
CIE-LAB	lab(93.17, -21.18, 68.64)
CIE-LCH	lch(93.17, 71.83, 107.15°)
OKLab	oklab(93.38% -0.0637 0.1565)
OKLCH	oklch(93.38% 0.169 112.1)
XYZ	xyz(69.0102, 83.3620, 23.2794)
Luminance	0.8336 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF45F #675FF4

analogous

#F4B15F #ECF45F #A2F45F

triadic

#ECF45F #5FECF4 #F45FEC

tetradic

#ECF45F #5FF4B1 #675FF4 #F45FA2

square

#ECF45F #5FF4B1 #675FF4 #F45FA2

split-complementary

#ECF45F #5FA2F4 #B15FF4

monochromatic

#C1CB0E #E5F026 #ECF45F #F3F898 #FAFCD2

Accessibility & contrast

On white

1.19

#ECF45F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.67

#ECF45F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF45F

17.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF45F	#FFFFFF	#000000	##000000
##ECF45F	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)

#FFE94D

Deuteranopia (green-blind)

#FFED68

Tritanopia (blue-blind)

#FBE6D5

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ecf45f;
/* rgb */ color: rgb(236, 244, 95);
/* oklch */ color: oklch(93.4% 0.169 112.1);

Tailwind

colors: {
  custom: {
    50: '#f5f793',
    500: '#ecf45f',
    950: '#000000',
  },
}

SCSS

$custom: #ecf45f;
$custom-light: #f5f793;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf45f",
  "rgb": {
    "r": 236,
    "g": 244,
    "b": 95
  },
  "hsl": {
    "h": 63.221,
    "s": 87.135,
    "l": 66.471
  },
  "oklch": {
    "l": 0.93384,
    "c": 0.16896,
    "h": 112.1
  },
  "luminance": 0.8336
}

Semantic roles & 50–950 ramp

primary

#ECF45F

secondary

#3830C7

accent

#02E40E

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECF45F

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

Preview Lab → · Contrast checker → · Palette generator →