#EFCB4F#EFCB4F

#EFCB4F is a very light, vivid yellow. Relative luminance 0.616; OKLCH L 85.1% C 0.145 H 92.7°. Best body text is #000000 at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB4F
RGB	rgb(239, 203, 79)
HSL	hsl(47, 83%, 62%)
HSV	hsv(47, 67%, 94%)
CMYK	cmyk(0%, 15.1%, 66.9%, 6.3%)
CIE-LAB	lab(82.72, -0.51, 64.19)
CIE-LCH	lch(82.72, 64.19, 90.46°)
OKLab	oklab(85.09% -0.0068 0.1447)
OKLCH	oklch(85.09% 0.145 92.7)
XYZ	xyz(58.3668, 61.6303, 16.2172)
Luminance	0.6163 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB4F #4F73EF

analogous

#EF7B4F #EFCB4F #C3EF4F

triadic

#EFCB4F #4FEFCB #CB4FEF

tetradic

#EFCB4F #4FEF7B #4F73EF #EF4FC3

square

#EFCB4F #4FEF7B #4F73EF #EF4FC3

split-complementary

#EFCB4F #4FC3EF #7B4FEF

monochromatic

#B38F10 #EABA17 #EFCB4F #F4DC87 #F9ECBF

Accessibility & contrast

On white

1.58

#EFCB4F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.33

#EFCB4F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB4F

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB4F	#FFFFFF	#000000	##000000
##EFCB4F	1.00	1.58	13.33	13.33
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.33	21.00	1.00	1.00
##000000	13.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C83F

Deuteranopia (green-blind)

#E9D255

Tritanopia (blue-blind)

#FFBBB1

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb4f;
/* rgb */ color: rgb(239, 203, 79);
/* oklch */ color: oklch(85.1% 0.145 92.7);

Tailwind

colors: {
  custom: {
    50: '#f8da86',
    500: '#efcb4f',
    950: '#000000',
  },
}

SCSS

$custom: #efcb4f;
$custom-light: #f8da86;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb4f",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 79
  },
  "hsl": {
    "h": 46.5,
    "s": 83.333,
    "l": 62.353
  },
  "oklch": {
    "l": 0.85092,
    "c": 0.14481,
    "h": 92.7
  },
  "luminance": 0.61627
}

Semantic roles & 50–950 ramp

primary

#EFCB4F

secondary

#2F4DB3

accent

#37E006

background

#FFFEFC

surface

#FFFBF3

border

#D7D4CD

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCB4F

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

Preview Lab → · Contrast checker → · Palette generator →