#577EDC#577EDC

#577EDC is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.0% C 0.149 H 265.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#577EDC
RGB	rgb(87, 126, 220)
HSL	hsl(222, 66%, 60%)
HSV	hsv(222, 60%, 86%)
CMYK	cmyk(60.5%, 42.7%, 0%, 13.7%)
CIE-LAB	lab(54.15, 15.01, -52.23)
CIE-LCH	lch(54.15, 54.34, 286.03°)
OKLab	oklab(60.99% -0.0123 -0.1488)
OKLCH	oklch(60.99% 0.149 265.3)
XYZ	xyz(24.3052, 22.1132, 70.6837)
Luminance	0.2212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EDC #DCB557

analogous

#57C0DC #577EDC #7257DC

triadic

#577EDC #DC577E #7EDC57

tetradic

#577EDC #DC57C0 #DCB557 #57DC72

square

#577EDC #DC57C0 #DCB557 #57DC72

split-complementary

#577EDC #DC7257 #C0DC57

monochromatic

#204399 #2A5ACB #577EDC #8AA5E7 #BCCCF1

Accessibility & contrast

On white

3.87

#577EDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#577EDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EDC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EDC	#FFFFFF	#000000	##000000
##577EDC	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5388E0

Deuteranopia (green-blind)

#407CDA

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577edc;
/* rgb */ color: rgb(87, 126, 220);
/* oklch */ color: oklch(61.0% 0.149 265.3);

Tailwind

colors: {
  custom: {
    50: '#91a2e7',
    500: '#577edc',
    950: '#000000',
  },
}

SCSS

$custom: #577edc;
$custom-light: #91a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#577edc",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 220
  },
  "hsl": {
    "h": 222.406,
    "s": 65.517,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60985,
    "c": 0.14932,
    "h": 265.3
  },
  "luminance": 0.22115
}

Semantic roles & 50–950 ramp

primary

#577EDC

secondary

#E1D2AE

accent

#9818CD

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EDC

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

Preview Lab → · Contrast checker → · Palette generator →