#EFCC63#EFCC63

#EFCC63 is a very light, vivid yellow. Relative luminance 0.624; OKLCH L 85.5% C 0.130 H 91.0°. Best body text is #000000 at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#EFCC63
RGB	rgb(239, 204, 99)
HSL	hsl(45, 81%, 66%)
HSV	hsv(45, 59%, 94%)
CMYK	cmyk(0%, 14.6%, 58.6%, 6.3%)
CIE-LAB	lab(83.15, 0.23, 55.90)
CIE-LCH	lch(83.15, 55.90, 89.76°)
OKLab	oklab(85.49% -0.0023 0.1298)
OKLCH	oklch(85.49% 0.13 91)
XYZ	xyz(59.4442, 62.4404, 20.7231)
Luminance	0.6244 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCC63 #6386EF

analogous

#EF8663 #EFCC63 #CCEF63

triadic

#EFCC63 #63EFCC #CC63EF

tetradic

#EFCC63 #63EF86 #6386EF #EF63CC

square

#EFCC63 #63EF86 #6386EF #EF63CC

split-complementary

#EFCC63 #63CCEF #8663EF

monochromatic

#C49814 #E9BA2B #EFCC63 #F5DE9B #FAF0D2

Accessibility & contrast

On white

1.56

#EFCC63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.49

#EFCC63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCC63

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCC63	#FFFFFF	#000000	##000000
##EFCC63	1.00	1.56	13.49	13.49
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.49	21.00	1.00	1.00
##000000	13.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC959

Deuteranopia (green-blind)

#E8D367

Tritanopia (blue-blind)

#FFBEB5

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #efcc63;
/* rgb */ color: rgb(239, 204, 99);
/* oklch */ color: oklch(85.5% 0.130 91.0);

Tailwind

colors: {
  custom: {
    50: '#f7db93',
    500: '#efcc63',
    950: '#000000',
  },
}

SCSS

$custom: #efcc63;
$custom-light: #f7db93;
$custom-dark: #000000;

JSON

{
  "hex": "#efcc63",
  "rgb": {
    "r": 239,
    "g": 204,
    "b": 99
  },
  "hsl": {
    "h": 45,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.8549,
    "c": 0.12981,
    "h": 91
  },
  "luminance": 0.62437
}

Semantic roles & 50–950 ramp

primary

#EFCC63

secondary

#3558C1

accent

#3DDE08

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140D

muted

#86837F

Preview Lab

Preview with #EFCC63

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

Preview Lab → · Contrast checker → · Palette generator →