#EFCB4E#EFCB4E

#EFCB4E is a very light, vivid yellow. Relative luminance 0.616; OKLCH L 85.1% C 0.146 H 92.8°. Best body text is #000000 at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB4E
RGB	rgb(239, 203, 78)
HSL	hsl(47, 83%, 62%)
HSV	hsv(47, 67%, 94%)
CMYK	cmyk(0%, 15.1%, 67.4%, 6.3%)
CIE-LAB	lab(82.71, -0.57, 64.59)
CIE-LCH	lch(82.71, 64.59, 90.50°)
OKLab	oklab(85.08% -0.0071 0.1453)
OKLCH	oklch(85.08% 0.146 92.8)
XYZ	xyz(58.3307, 61.6159, 16.0269)
Luminance	0.6161 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB4E #4E72EF

analogous

#EF7B4E #EFCB4E #C2EF4E

triadic

#EFCB4E #4EEFCB #CB4EEF

tetradic

#EFCB4E #4EEF7B #4E72EF #EF4EC2

square

#EFCB4E #4EEF7B #4E72EF #EF4EC2

split-complementary

#EFCB4E #4EC2EF #7B4EEF

monochromatic

#B28E10 #EABB16 #EFCB4E #F4DB86 #F9ECBE

Accessibility & contrast

On white

1.58

#EFCB4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.32

#EFCB4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB4E

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB4E	#FFFFFF	#000000	##000000
##EFCB4E	1.00	1.58	13.32	13.32
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.32	21.00	1.00	1.00
##000000	13.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C83E

Deuteranopia (green-blind)

#E9D254

Tritanopia (blue-blind)

#FFBBB1

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb4e;
/* rgb */ color: rgb(239, 203, 78);
/* oklch */ color: oklch(85.1% 0.146 92.8);

Tailwind

colors: {
  custom: {
    50: '#f8da86',
    500: '#efcb4e',
    950: '#000000',
  },
}

SCSS

$custom: #efcb4e;
$custom-light: #f8da86;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb4e",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 78
  },
  "hsl": {
    "h": 46.584,
    "s": 83.42,
    "l": 62.157
  },
  "oklch": {
    "l": 0.85084,
    "c": 0.14551,
    "h": 92.8
  },
  "luminance": 0.61613
}

Semantic roles & 50–950 ramp

primary

#EFCB4E

secondary

#2F4CB2

accent

#36E006

background

#FFFEFB

surface

#FFFBF2

border

#D7D4CC

text

#18140B

muted

#86837E

Preview Lab

Preview with #EFCB4E

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

Preview Lab → · Contrast checker → · Palette generator →