#ECF277#ECF277

#ECF277 is a very light, vivid yellow. Relative luminance 0.827; OKLCH L 93.2% C 0.146 H 111.4°. Best body text is #000000 at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#ECF277
RGB	rgb(236, 242, 119)
HSL	hsl(63, 83%, 71%)
HSV	hsv(63, 51%, 95%)
CMYK	cmyk(2.5%, 0%, 50.8%, 5.1%)
CIE-LAB	lab(92.87, -18.43, 57.95)
CIE-LCH	lch(92.87, 60.81, 107.65°)
OKLab	oklab(93.21% -0.0535 0.1363)
OKLCH	oklch(93.21% 0.146 111.4)
XYZ	xyz(69.6754, 82.6704, 29.7358)
Luminance	0.8267 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#ECF277 #7D77F2

analogous

#F2BA77 #ECF277 #AEF277

triadic

#ECF277 #77ECF2 #F277EC

tetradic

#ECF277 #77F2BA #7D77F2 #F277AE

square

#ECF277 #77F2BA #7D77F2 #F277AE

split-complementary

#ECF277 #77AEF2 #BA77F2

monochromatic

#D0DA15 #E4ED3F #ECF277 #F4F7AF #FBFCE3

Accessibility & contrast

On white

1.20

#ECF277 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.53

#ECF277 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #ECF277

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##ECF277	#FFFFFF	#000000	##000000
##ECF277	1.00	1.20	17.53	17.53
#FFFFFF	1.20	1.00	21.00	21.00
#000000	17.53	21.00	1.00	1.00
##000000	17.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE96B

Deuteranopia (green-blind)

#FFEC7E

Tritanopia (blue-blind)

#FAE6D6

Achromatopsia (no color)

#EAEAEA

Design tokens & code

CSS

--color: #ecf277;
/* rgb */ color: rgb(236, 242, 119);
/* oklch */ color: oklch(93.2% 0.146 111.4);

Tailwind

colors: {
  custom: {
    50: '#f4f6a1',
    500: '#ecf277',
    950: '#000000',
  },
}

SCSS

$custom: #ecf277;
$custom-light: #f4f6a1;
$custom-dark: #000000;

JSON

{
  "hex": "#ecf277",
  "rgb": {
    "r": 236,
    "g": 242,
    "b": 119
  },
  "hsl": {
    "h": 62.927,
    "s": 82.55,
    "l": 70.784
  },
  "oklch": {
    "l": 0.93213,
    "c": 0.14647,
    "h": 111.4
  },
  "luminance": 0.82669
}

Semantic roles & 50–950 ramp

primary

#ECF277

secondary

#4841CC

accent

#07DF11

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#17170F

muted

#858580

Preview Lab

Preview with #ECF277

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

Preview Lab → · Contrast checker → · Palette generator →