#577FD6#577FD6

#577FD6 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.8% C 0.140 H 264.1°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#577FD6
RGB	rgb(87, 127, 214)
HSL	hsl(221, 61%, 59%)
HSV	hsv(221, 59%, 84%)
CMYK	cmyk(59.3%, 40.7%, 0%, 16.1%)
CIE-LAB	lab(54.09, 12.39, -48.94)
CIE-LCH	lch(54.09, 50.49, 284.21°)
OKLab	oklab(60.83% -0.0144 -0.1392)
OKLCH	oklch(60.83% 0.14 264.1)
XYZ	xyz(23.6533, 22.0580, 66.6164)
Luminance	0.2206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FD6 #D6AE57

analogous

#57BFD6 #577FD6 #6F57D6

triadic

#577FD6 #D6577F #7FD657

tetradic

#577FD6 #D657BF #D6AE57 #57D66F

square

#577FD6 #D657BF #D6AE57 #57D66F

split-complementary

#577FD6 #D66F57 #BFD657

monochromatic

#234590 #2F5DC1 #577FD6 #88A4E2 #B9CAEE

Accessibility & contrast

On white

3.88

#577FD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#577FD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FD6

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FD6	#FFFFFF	#000000	##000000
##577FD6	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5988D9

Deuteranopia (green-blind)

#487CD4

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577fd6;
/* rgb */ color: rgb(87, 127, 214);
/* oklch */ color: oklch(60.8% 0.140 264.1);

Tailwind

colors: {
  custom: {
    50: '#90a3e3',
    500: '#577fd6',
    950: '#000000',
  },
}

SCSS

$custom: #577fd6;
$custom-light: #90a3e3;
$custom-dark: #000000;

JSON

{
  "hex": "#577fd6",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 214
  },
  "hsl": {
    "h": 221.102,
    "s": 60.766,
    "l": 59.02
  },
  "oklch": {
    "l": 0.60833,
    "c": 0.13992,
    "h": 264.1
  },
  "luminance": 0.2206
}

Semantic roles & 50–950 ramp

primary

#577FD6

secondary

#DDCEAB

accent

#B244E4

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #577FD6

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

Preview Lab → · Contrast checker → · Palette generator →