#EFCB58#EFCB58

#EFCB58 is a very light, vivid yellow. Relative luminance 0.618; OKLCH L 85.2% C 0.138 H 91.8°. Best body text is #000000 at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#EFCB58
RGB	rgb(239, 203, 88)
HSL	hsl(46, 83%, 64%)
HSV	hsv(46, 63%, 94%)
CMYK	cmyk(0%, 15.1%, 63.2%, 6.3%)
CIE-LAB	lab(82.79, 0.01, 60.44)
CIE-LCH	lch(82.79, 60.44, 89.99°)
OKLab	oklab(85.18% -0.0043 0.1381)
OKLCH	oklch(85.18% 0.138 91.8)
XYZ	xyz(58.7168, 61.7704, 18.0608)
Luminance	0.6177 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCB58 #587CEF

analogous

#EF8058 #EFCB58 #C8EF58

triadic

#EFCB58 #58EFCB #CB58EF

tetradic

#EFCB58 #58EF80 #587CEF #EF58C8

square

#EFCB58 #58EF80 #587CEF #EF58C8

split-complementary

#EFCB58 #58C8EF #8058EF

monochromatic

#BB9212 #EABA20 #EFCB58 #F4DC90 #FAEEC8

Accessibility & contrast

On white

1.57

#EFCB58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.35

#EFCB58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCB58

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCB58	#FFFFFF	#000000	##000000
##EFCB58	1.00	1.57	13.35	13.35
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.35	21.00	1.00	1.00
##000000	13.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC84B

Deuteranopia (green-blind)

#E8D35D

Tritanopia (blue-blind)

#FFBCB2

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #efcb58;
/* rgb */ color: rgb(239, 203, 88);
/* oklch */ color: oklch(85.2% 0.138 91.8);

Tailwind

colors: {
  custom: {
    50: '#f8da8c',
    500: '#efcb58',
    950: '#000000',
  },
}

SCSS

$custom: #efcb58;
$custom-light: #f8da8c;
$custom-dark: #000000;

JSON

{
  "hex": "#efcb58",
  "rgb": {
    "r": 239,
    "g": 203,
    "b": 88
  },
  "hsl": {
    "h": 45.695,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.85175,
    "c": 0.13814,
    "h": 91.8
  },
  "luminance": 0.61767
}

Semantic roles & 50–950 ramp

primary

#EFCB58

secondary

#3252BA

accent

#3ADF07

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCB58

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

Preview Lab → · Contrast checker → · Palette generator →