#578FEE#578FEE

#578FEE is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.6% C 0.154 H 260.3°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#578FEE
RGB	rgb(87, 143, 238)
HSL	hsl(218, 82%, 64%)
HSV	hsv(218, 63%, 93%)
CMYK	cmyk(63.4%, 39.9%, 0%, 6.7%)
CIE-LAB	lab(59.75, 10.81, -53.35)
CIE-LCH	lch(59.75, 54.43, 281.46°)
OKLab	oklab(65.63% -0.0259 -0.1519)
OKLCH	oklch(65.63% 0.154 260.3)
XYZ	xyz(29.1801, 27.8414, 84.7085)
Luminance	0.2784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578FEE #EEB657

analogous

#57DBEE #578FEE #6A57EE

triadic

#578FEE #EE578F #8FEE57

tetradic

#578FEE #EE57DB #EEB657 #57EE6A

square

#578FEE #EE57DB #EEB657 #57EE6A

split-complementary

#578FEE #EE6A57 #DBEE57

monochromatic

#1350B8 #1F6AE8 #578FEE #8FB4F4 #C6D9F9

Accessibility & contrast

On white

3.20

#578FEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#578FEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578FEE

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578FEE	#FFFFFF	#000000	##000000
##578FEE	1.00	3.20	6.57	6.57
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6497F2

Deuteranopia (green-blind)

#4E89EC

Tritanopia (blue-blind)

#00A5B3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #578fee;
/* rgb */ color: rgb(87, 143, 238);
/* oklch */ color: oklch(65.6% 0.154 260.3);

Tailwind

colors: {
  custom: {
    50: '#94aff4',
    500: '#578fee',
    950: '#000000',
  },
}

SCSS

$custom: #578fee;
$custom-light: #94aff4;
$custom-dark: #000000;

JSON

{
  "hex": "#578fee",
  "rgb": {
    "r": 87,
    "g": 143,
    "b": 238
  },
  "hsl": {
    "h": 217.748,
    "s": 81.622,
    "l": 63.725
  },
  "oklch": {
    "l": 0.65625,
    "c": 0.15408,
    "h": 260.3
  },
  "luminance": 0.27844
}

Semantic roles & 50–950 ramp

primary

#578FEE

secondary

#EBD7B6

accent

#8E08DE

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578FEE

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

Preview Lab → · Contrast checker → · Palette generator →