#ECF16B#ECF16B

#ECF16B is a very light, vivid yellow. Relative luminance 0.818; OKLCH L 92.9% C 0.156 H 111.0°. Best body text is #000000 at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#ECF16B
RGB	rgb(236, 241, 107)
HSL	hsl(62, 83%, 68%)
HSV	hsv(62, 56%, 95%)
CMYK	cmyk(2.1%, 0%, 55.6%, 5.5%)
CIE-LAB	lab(92.49, -18.90, 62.85)
CIE-LCH	lch(92.49, 65.63, 106.74°)
OKLab	oklab(92.87% -0.0561 0.1457)
OKLCH	oklch(92.87% 0.156 111)
XYZ	xyz(68.7029, 81.8065, 26.0782)
Luminance	0.8181 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF16B #706BF1

analogous

#F1B36B #ECF16B #A9F16B

triadic

#ECF16B #6BECF1 #F16BEC

tetradic

#ECF16B #6BF1B3 #706BF1 #F16BA9

square

#ECF16B #6BF1B3 #706BF1 #F16BA9

split-complementary

#ECF16B #6BA9F1 #B36BF1

monochromatic

#C7CE13 #E5EC33 #ECF16B #F3F6A3 #FAFCDB

Accessibility & contrast

On white

1.21

#ECF16B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.36

#ECF16B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF16B

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF16B	#FFFFFF	#000000	##000000
##ECF16B	1.00	1.21	17.36	17.36
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.36	21.00	1.00	1.00
##000000	17.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE75D

Deuteranopia (green-blind)

#FFEB73

Tritanopia (blue-blind)

#FAE4D4

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #ecf16b;
/* rgb */ color: rgb(236, 241, 107);
/* oklch */ color: oklch(92.9% 0.156 111.0);

Tailwind

colors: {
  custom: {
    50: '#f5f59a',
    500: '#ecf16b',
    950: '#000000',
  },
}

SCSS

$custom: #ecf16b;
$custom-light: #f5f59a;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf16b",
  "rgb": {
    "r": 236,
    "g": 241,
    "b": 107
  },
  "hsl": {
    "h": 62.239,
    "s": 82.716,
    "l": 68.235
  },
  "oklch": {
    "l": 0.92871,
    "c": 0.15608,
    "h": 111
  },
  "luminance": 0.81805
}

Semantic roles & 50–950 ramp

primary

#ECF16B

secondary

#3C37CA

accent

#06DF0E

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170E

muted

#85857F

Preview Lab

Preview with #ECF16B

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

Preview Lab → · Contrast checker → · Palette generator →