#558FEE#558FEE

#558FEE is a light, vivid blue. Relative luminance 0.277; OKLCH L 65.5% C 0.155 H 259.8°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#558FEE
RGB	rgb(85, 143, 238)
HSL	hsl(217, 82%, 63%)
HSV	hsv(217, 64%, 93%)
CMYK	cmyk(64.3%, 39.9%, 0%, 6.7%)
CIE-LAB	lab(59.66, 10.47, -53.49)
CIE-LCH	lch(59.66, 54.51, 281.08°)
OKLab	oklab(65.54% -0.0275 -0.1523)
OKLCH	oklch(65.54% 0.155 259.8)
XYZ	xyz(28.9959, 27.7465, 84.6999)
Luminance	0.2775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FEE #EEB455

analogous

#55DBEE #558FEE #6755EE

triadic

#558FEE #EE558F #8FEE55

tetradic

#558FEE #EE55DB #EEB455 #55EE67

square

#558FEE #EE55DB #EEB455 #55EE67

split-complementary

#558FEE #EE6755 #DBEE55

monochromatic

#1250B6 #1D6AE8 #558FEE #8DB4F4 #C4D8F9

Accessibility & contrast

On white

3.21

#558FEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#558FEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FEE

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FEE	#FFFFFF	#000000	##000000
##558FEE	1.00	3.21	6.55	6.55
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6497F2

Deuteranopia (green-blind)

#4D89EC

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #558fee;
/* rgb */ color: rgb(85, 143, 238);
/* oklch */ color: oklch(65.5% 0.155 259.8);

Tailwind

colors: {
  custom: {
    50: '#93aff4',
    500: '#558fee',
    950: '#000000',
  },
}

SCSS

$custom: #558fee;
$custom-light: #93aff4;
$custom-dark: #000000;

JSON

{
  "hex": "#558fee",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 238
  },
  "hsl": {
    "h": 217.255,
    "s": 81.818,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65535,
    "c": 0.15479,
    "h": 259.8
  },
  "luminance": 0.27749
}

Semantic roles & 50–950 ramp

primary

#558FEE

secondary

#EBD6B4

accent

#8D07DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558FEE

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

Preview Lab → · Contrast checker → · Palette generator →