#577CD5#577CD5

#577CD5 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.1% C 0.142 H 265.4°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#577CD5
RGB	rgb(87, 124, 213)
HSL	hsl(222, 60%, 59%)
HSV	hsv(222, 59%, 84%)
CMYK	cmyk(59.2%, 41.8%, 0%, 16.5%)
CIE-LAB	lab(53.22, 13.89, -49.77)
CIE-LCH	lch(53.22, 51.67, 285.59°)
OKLab	oklab(60.14% -0.0115 -0.1416)
OKLCH	oklch(60.14% 0.142 265.4)
XYZ	xyz(23.1443, 21.2437, 65.8187)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CD5 #D5B057

analogous

#57BBD5 #577CD5 #7157D5

triadic

#577CD5 #D5577C #7CD557

tetradic

#577CD5 #D557BB #D5B057 #57D571

square

#577CD5 #D557BB #D5B057 #57D571

split-complementary

#577CD5 #D57157 #BBD557

monochromatic

#24438E #305ABF #577CD5 #88A2E1 #B9C8ED

Accessibility & contrast

On white

4.00

#577CD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#577CD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CD5

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CD5	#FFFFFF	#000000	##000000
##577CD5	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5585D8

Deuteranopia (green-blind)

#437AD3

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577cd5;
/* rgb */ color: rgb(87, 124, 213);
/* oklch */ color: oklch(60.1% 0.142 265.4);

Tailwind

colors: {
  custom: {
    50: '#90a1e2',
    500: '#577cd5',
    950: '#000000',
  },
}

SCSS

$custom: #577cd5;
$custom-light: #90a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#577cd5",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 213
  },
  "hsl": {
    "h": 222.381,
    "s": 60,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60142,
    "c": 0.14208,
    "h": 265.4
  },
  "luminance": 0.21246
}

Semantic roles & 50–950 ramp

primary

#577CD5

secondary

#DDCEAB

accent

#B545E3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #577CD5

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

Preview Lab → · Contrast checker → · Palette generator →