#577AC5#577AC5

#577AC5 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.122 H 264.1°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#577AC5
RGB	rgb(87, 122, 197)
HSL	hsl(221, 49%, 56%)
HSV	hsv(221, 56%, 77%)
CMYK	cmyk(55.8%, 38.1%, 0%, 22.7%)
CIE-LAB	lab(51.81, 9.82, -42.91)
CIE-LCH	lch(51.81, 44.02, 282.89°)
OKLab	oklab(58.78% -0.0126 -0.1216)
OKLCH	oklch(58.78% 0.122 264.1)
XYZ	xyz(20.9646, 19.9749, 55.5633)
Luminance	0.1998 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AC5 #C5A257

analogous

#57B1C5 #577AC5 #6B57C5

triadic

#577AC5 #C5577A #7AC557

tetradic

#577AC5 #C557B1 #C5A257 #57C56B

square

#577AC5 #C557B1 #C5A257 #57C56B

split-complementary

#577AC5 #C56B57 #B1C557

monochromatic

#294278 #395CA6 #577AC5 #849ED5 #B2C2E4

Accessibility & contrast

On white

4.20

#577AC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#577AC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AC5

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AC5	#FFFFFF	#000000	##000000
##577AC5	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B81C8

Deuteranopia (green-blind)

#4E77C3

Tritanopia (blue-blind)

#0F8A96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577ac5;
/* rgb */ color: rgb(87, 122, 197);
/* oklch */ color: oklch(58.8% 0.122 264.1);

Tailwind

colors: {
  custom: {
    50: '#8ea0d7',
    500: '#577ac5',
    950: '#000000',
  },
}

SCSS

$custom: #577ac5;
$custom-light: #8ea0d7;
$custom-dark: #000000;

JSON

{
  "hex": "#577ac5",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 197
  },
  "hsl": {
    "h": 220.909,
    "s": 48.673,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58778,
    "c": 0.12221,
    "h": 264.1
  },
  "luminance": 0.19977
}

Semantic roles & 50–950 ramp

primary

#577AC5

secondary

#D3C4A5

accent

#AD50D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577AC5

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

Preview Lab → · Contrast checker → · Palette generator →