#FFFF58#FFFF58

#FFFF58 is a very light, vivid yellow. Relative luminance 0.935; OKLCH L 97.1% C 0.181 H 109.3°. Best body text is #000000 at 19.70:1 contrast (WCAG AA passes).

Color values

HEX	#FFFF58
RGB	rgb(255, 255, 88)
HSL	hsl(60, 100%, 67%)
HSV	hsv(60, 65%, 100%)
CMYK	cmyk(0%, 0%, 65.5%, 0%)
CIE-LAB	lab(97.42, -19.26, 76.23)
CIE-LCH	lch(97.42, 78.63, 104.18°)
OKLab	oklab(97.12% -0.0601 0.171)
OKLCH	oklch(97.12% 0.181 109.3)
XYZ	xyz(78.7641, 93.4868, 23.1264)
Luminance	0.9348 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFF58 #5858FF

analogous

#FFAC58 #FFFF58 #ACFF58

triadic

#FFFF58 #58FFFF #FF58FF

tetradic

#FFFF58 #58FFAC #5858FF #FF58AC

square

#FFFF58 #58FFAC #5858FF #FF58AC

split-complementary

#FFFF58 #58ACFF #AC58FF

monochromatic

#DDDD00 #FFFF1B #FFFF58 #FFFF95 #FFFFD2

Accessibility & contrast

On white

1.07

#FFFF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.70

#FFFF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFF58

19.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFF58	#FFFFFF	#000000	##000000
##FFFF58	1.00	1.07	19.70	19.70
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.70	21.00	1.00	1.00
##000000	19.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF540

Deuteranopia (green-blind)

#FFFA63

Tritanopia (blue-blind)

#FFEFDD

Achromatopsia (no color)

#F8F8F8

Design tokens & code

CSS

--color: #ffff58;
/* rgb */ color: rgb(255, 255, 88);
/* oklch */ color: oklch(97.1% 0.181 109.3);

Tailwind

colors: {
  custom: {
    50: '#ffff90',
    500: '#ffff58',
    950: '#000000',
  },
}

SCSS

$custom: #ffff58;
$custom-light: #ffff90;
$custom-dark: #000000;

JSON

{
  "hex": "#ffff58",
  "rgb": {
    "r": 255,
    "g": 255,
    "b": 88
  },
  "hsl": {
    "h": 60,
    "s": 100,
    "l": 67.255
  },
  "oklch": {
    "l": 0.97117,
    "c": 0.18127,
    "h": 109.3
  },
  "luminance": 0.93485
}

Semantic roles & 50–950 ramp

primary

#FFFF58

secondary

#2626D6

accent

#00E600

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFFF58

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

Preview Lab → · Contrast checker → · Palette generator →