#578EEC#578EEC

#578EEC is a light, vivid blue. Relative luminance 0.274; OKLCH L 65.3% C 0.153 H 260.4°. Best body text is #000000 at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#578EEC
RGB	rgb(87, 142, 236)
HSL	hsl(218, 80%, 63%)
HSV	hsv(218, 63%, 93%)
CMYK	cmyk(63.1%, 39.8%, 0%, 7.5%)
CIE-LAB	lab(59.37, 10.74, -52.84)
CIE-LCH	lch(59.37, 53.92, 281.49°)
OKLab	oklab(65.3% -0.0253 -0.1504)
OKLCH	oklch(65.3% 0.153 260.4)
XYZ	xyz(28.7385, 27.4257, 83.1198)
Luminance	0.2743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578EEC #ECB557

analogous

#57D9EC #578EEC #6A57EC

triadic

#578EEC #EC578E #8EEC57

tetradic

#578EEC #EC57D9 #ECB557 #57EC6A

square

#578EEC #EC57D9 #ECB557 #57EC6A

split-complementary

#578EEC #EC6A57 #D9EC57

monochromatic

#144FB4 #2069E6 #578EEC #8EB3F2 #C5D8F8

Accessibility & contrast

On white

3.24

#578EEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.49

#578EEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578EEC

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578EEC	#FFFFFF	#000000	##000000
##578EEC	1.00	3.24	6.49	6.49
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.49	21.00	1.00	1.00
##000000	6.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6496F0

Deuteranopia (green-blind)

#4E89EA

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #578eec;
/* rgb */ color: rgb(87, 142, 236);
/* oklch */ color: oklch(65.3% 0.153 260.4);

Tailwind

colors: {
  custom: {
    50: '#93aef2',
    500: '#578eec',
    950: '#000000',
  },
}

SCSS

$custom: #578eec;
$custom-light: #93aef2;
$custom-dark: #000000;

JSON

{
  "hex": "#578eec",
  "rgb": {
    "r": 87,
    "g": 142,
    "b": 236
  },
  "hsl": {
    "h": 217.852,
    "s": 79.679,
    "l": 63.333
  },
  "oklch": {
    "l": 0.65297,
    "c": 0.15253,
    "h": 260.4
  },
  "luminance": 0.27428
}

Semantic roles & 50–950 ramp

primary

#578EEC

secondary

#EAD6B5

accent

#8E0ADC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578EEC

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

Preview Lab → · Contrast checker → · Palette generator →