#577FD2#577FD2

#577FD2 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.6% C 0.134 H 263.5°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#577FD2
RGB	rgb(87, 127, 210)
HSL	hsl(220, 58%, 58%)
HSV	hsv(220, 59%, 82%)
CMYK	cmyk(58.6%, 39.5%, 0%, 17.6%)
CIE-LAB	lab(53.87, 11.07, -47.03)
CIE-LCH	lch(53.87, 48.31, 283.24°)
OKLab	oklab(60.6% -0.0153 -0.1335)
OKLCH	oklch(60.6% 0.134 263.5)
XYZ	xyz(23.1487, 21.8562, 63.9591)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FD2 #D2AA57

analogous

#57BCD2 #577FD2 #6C57D2

triadic

#577FD2 #D2577F #7FD257

tetradic

#577FD2 #D257BC #D2AA57 #57D26C

square

#577FD2 #D257BC #D2AA57 #57D26C

split-complementary

#577FD2 #D26C57 #BCD257

monochromatic

#25468A #325EBA #577FD2 #87A4DF #B8C9EC

Accessibility & contrast

On white

3.91

#577FD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#577FD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FD2

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FD2	#FFFFFF	#000000	##000000
##577FD2	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C87D5

Deuteranopia (green-blind)

#4B7CD0

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577fd2;
/* rgb */ color: rgb(87, 127, 210);
/* oklch */ color: oklch(60.6% 0.134 263.5);

Tailwind

colors: {
  custom: {
    50: '#90a3e0',
    500: '#577fd2',
    950: '#000000',
  },
}

SCSS

$custom: #577fd2;
$custom-light: #90a3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#577fd2",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 210
  },
  "hsl": {
    "h": 220.488,
    "s": 57.746,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60598,
    "c": 0.13442,
    "h": 263.5
  },
  "luminance": 0.21858
}

Semantic roles & 50–950 ramp

primary

#577FD2

secondary

#DBCBAA

accent

#AF47E1

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #577FD2

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

Preview Lab → · Contrast checker → · Palette generator →