#EFEB58#EFEB58

#EFEB58 is a very light, vivid yellow. Relative luminance 0.785; OKLCH L 91.7% C 0.164 H 107.7°. Best body text is #000000 at 16.69:1 contrast (WCAG AA passes).

Color values

HEX	#EFEB58
RGB	rgb(239, 235, 88)
HSL	hsl(58, 83%, 64%)
HSV	hsv(58, 63%, 94%)
CMYK	cmyk(0%, 1.7%, 63.2%, 6.3%)
CIE-LAB	lab(91.00, -16.05, 69.21)
CIE-LCH	lch(91.00, 71.04, 103.06°)
OKLab	oklab(91.69% -0.0501 0.1566)
OKLCH	oklch(91.69% 0.164 107.7)
XYZ	xyz(67.0687, 78.4740, 20.8447)
Luminance	0.7847 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEB58 #585CEF

analogous

#EFA058 #EFEB58 #A7EF58

triadic

#EFEB58 #58EFEB #EB58EF

tetradic

#EFEB58 #58EFA0 #585CEF #EF58A7

square

#EFEB58 #58EFA0 #585CEF #EF58A7

split-complementary

#EFEB58 #58A7EF #A058EF

monochromatic

#BBB612 #EAE420 #EFEB58 #F4F290 #FAF8C8

Accessibility & contrast

On white

1.26

#EFEB58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.69

#EFEB58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEB58

16.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEB58	#FFFFFF	#000000	##000000
##EFEB58	1.00	1.26	16.69	16.69
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.69	21.00	1.00	1.00
##000000	16.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE245

Deuteranopia (green-blind)

#FFE861

Tritanopia (blue-blind)

#FFDDCD

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #efeb58;
/* rgb */ color: rgb(239, 235, 88);
/* oklch */ color: oklch(91.7% 0.164 107.7);

Tailwind

colors: {
  custom: {
    50: '#f8f18e',
    500: '#efeb58',
    950: '#000000',
  },
}

SCSS

$custom: #efeb58;
$custom-light: #f8f18e;
$custom-dark: #000000;

JSON

{
  "hex": "#efeb58",
  "rgb": {
    "r": 239,
    "g": 235,
    "b": 88
  },
  "hsl": {
    "h": 58.411,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.91685,
    "c": 0.16446,
    "h": 107.7
  },
  "luminance": 0.78472
}

Semantic roles & 50–950 ramp

primary

#EFEB58

secondary

#3235BA

accent

#0CDF07

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#18160D

muted

#86857F

Preview Lab

Preview with #EFEB58

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

Preview Lab → · Contrast checker → · Palette generator →