#577ED9#577ED9

#577ED9 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.8% C 0.145 H 264.9°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#577ED9
RGB	rgb(87, 126, 217)
HSL	hsl(222, 63%, 60%)
HSV	hsv(222, 60%, 85%)
CMYK	cmyk(59.9%, 41.9%, 0%, 14.9%)
CIE-LAB	lab(53.98, 14.00, -50.81)
CIE-LCH	lch(53.98, 52.70, 285.41°)
OKLab	oklab(60.8% -0.0128 -0.1446)
OKLCH	oklch(60.8% 0.145 264.9)
XYZ	xyz(23.9114, 21.9557, 68.6100)
Luminance	0.2196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ED9 #D9B257

analogous

#57BFD9 #577ED9 #7157D9

triadic

#577ED9 #D9577E #7ED957

tetradic

#577ED9 #D957BF #D9B257 #57D971

square

#577ED9 #D957BF #D9B257 #57D971

split-complementary

#577ED9 #D97157 #BFD957

monochromatic

#214494 #2D5BC6 #577ED9 #89A4E4 #BBCBF0

Accessibility & contrast

On white

3.89

#577ED9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#577ED9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ED9

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ED9	#FFFFFF	#000000	##000000
##577ED9	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5687DD

Deuteranopia (green-blind)

#437CD7

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #577ed9;
/* rgb */ color: rgb(87, 126, 217);
/* oklch */ color: oklch(60.8% 0.145 264.9);

Tailwind

colors: {
  custom: {
    50: '#91a2e5',
    500: '#577ed9',
    950: '#000000',
  },
}

SCSS

$custom: #577ed9;
$custom-light: #91a2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#577ed9",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 217
  },
  "hsl": {
    "h": 222,
    "s": 63.107,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60803,
    "c": 0.14521,
    "h": 264.9
  },
  "luminance": 0.21958
}

Semantic roles & 50–950 ramp

primary

#577ED9

secondary

#DFD0AD

accent

#B542E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577ED9

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

Preview Lab → · Contrast checker → · Palette generator →