#ECF05E#ECF05E

#ECF05E is a very light, vivid yellow. Relative luminance 0.810; OKLCH L 92.5% C 0.166 H 110.7°. Best body text is #000000 at 17.19:1 contrast (WCAG AA passes).

Color values

HEX	#ECF05E
RGB	rgb(236, 240, 94)
HSL	hsl(62, 83%, 65%)
HSV	hsv(62, 61%, 94%)
CMYK	cmyk(1.7%, 0%, 60.8%, 5.9%)
CIE-LAB	lab(92.12, -19.32, 67.91)
CIE-LCH	lch(92.12, 70.60, 105.88°)
OKLab	oklab(92.54% -0.0586 0.1548)
OKLCH	oklch(92.54% 0.166 110.7)
XYZ	xyz(67.7745, 80.9629, 22.6447)
Luminance	0.8096 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF05E #625EF0

analogous

#F0AB5E #ECF05E #A3F05E

triadic

#ECF05E #5EECF0 #F05EEC

tetradic

#ECF05E #5EF0AB #625EF0 #F05EA3

square

#ECF05E #5EF0AB #625EF0 #F05EA3

split-complementary

#ECF05E #5EA3F0 #AB5EF0

monochromatic

#BDC212 #E5EB26 #ECF05E #F3F596 #F9FACE

Accessibility & contrast

On white

1.22

#ECF05E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.19

#ECF05E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF05E

17.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF05E	#FFFFFF	#000000	##000000
##ECF05E	1.00	1.22	17.19	17.19
#FFFFFF	1.22	1.00	21.00	21.00
#000000	17.19	21.00	1.00	1.00
##000000	17.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE64C

Deuteranopia (green-blind)

#FFEA67

Tritanopia (blue-blind)

#FBE2D1

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #ecf05e;
/* rgb */ color: rgb(236, 240, 94);
/* oklch */ color: oklch(92.5% 0.166 110.7);

Tailwind

colors: {
  custom: {
    50: '#f5f492',
    500: '#ecf05e',
    950: '#000000',
  },
}

SCSS

$custom: #ecf05e;
$custom-light: #f5f492;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf05e",
  "rgb": {
    "r": 236,
    "g": 240,
    "b": 94
  },
  "hsl": {
    "h": 61.644,
    "s": 82.955,
    "l": 65.49
  },
  "oklch": {
    "l": 0.92536,
    "c": 0.16552,
    "h": 110.7
  },
  "luminance": 0.80961
}

Semantic roles & 50–950 ramp

primary

#ECF05E

secondary

#3733BF

accent

#06DF0C

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#17170D

muted

#85857F

Preview Lab

Preview with #ECF05E

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

Preview Lab → · Contrast checker → · Palette generator →