#EFCA58#EFCA58

#EFCA58 is a very light, vivid yellow. Relative luminance 0.613; OKLCH L 85.0% C 0.138 H 91.2°. Best body text is #000000 at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#EFCA58
RGB	rgb(239, 202, 88)
HSL	hsl(45, 83%, 64%)
HSV	hsv(45, 63%, 94%)
CMYK	cmyk(0%, 15.5%, 63.2%, 6.3%)
CIE-LAB	lab(82.54, 0.53, 60.17)
CIE-LCH	lch(82.54, 60.17, 89.50°)
OKLab	oklab(84.98% -0.0028 0.1375)
OKLCH	oklch(84.98% 0.138 91.2)
XYZ	xyz(58.4814, 61.2996, 17.9823)
Luminance	0.6130 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFCA58 #587DEF

analogous

#EF7F58 #EFCA58 #C9EF58

triadic

#EFCA58 #58EFCA #CA58EF

tetradic

#EFCA58 #58EF7F #587DEF #EF58C9

square

#EFCA58 #58EF7F #587DEF #EF58C9

split-complementary

#EFCA58 #58C9EF #7F58EF

monochromatic

#BB9112 #EAB820 #EFCA58 #F4DC90 #FAEDC8

Accessibility & contrast

On white

1.58

#EFCA58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.26

#EFCA58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFCA58

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFCA58	#FFFFFF	#000000	##000000
##EFCA58	1.00	1.58	13.26	13.26
#FFFFFF	1.58	1.00	21.00	21.00
#000000	13.26	21.00	1.00	1.00
##000000	13.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC74B

Deuteranopia (green-blind)

#E8D25D

Tritanopia (blue-blind)

#FFBBB1

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #efca58;
/* rgb */ color: rgb(239, 202, 88);
/* oklch */ color: oklch(85.0% 0.138 91.2);

Tailwind

colors: {
  custom: {
    50: '#f8d98c',
    500: '#efca58',
    950: '#000000',
  },
}

SCSS

$custom: #efca58;
$custom-light: #f8d98c;
$custom-dark: #000000;

JSON

{
  "hex": "#efca58",
  "rgb": {
    "r": 239,
    "g": 202,
    "b": 88
  },
  "hsl": {
    "h": 45.298,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.84977,
    "c": 0.13751,
    "h": 91.2
  },
  "luminance": 0.61296
}

Semantic roles & 50–950 ramp

primary

#EFCA58

secondary

#3253BA

accent

#3CDF07

background

#FFFEFC

surface

#FFFBF4

border

#D7D4CE

text

#18140C

muted

#86837F

Preview Lab

Preview with #EFCA58

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

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