#577DD9#577DD9

#577DD9 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.6% C 0.146 H 265.4°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#577DD9
RGB	rgb(87, 125, 217)
HSL	hsl(222, 63%, 60%)
HSV	hsv(222, 60%, 85%)
CMYK	cmyk(59.9%, 42.4%, 0%, 14.9%)
CIE-LAB	lab(53.71, 14.61, -51.24)
CIE-LCH	lch(53.71, 53.28, 285.92°)
OKLab	oklab(60.59% -0.0118 -0.1459)
OKLCH	oklch(60.59% 0.146 265.4)
XYZ	xyz(23.7842, 21.7012, 68.5676)
Luminance	0.2170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD9 #D9B357

analogous

#57BED9 #577DD9 #7257D9

triadic

#577DD9 #D9577D #7DD957

tetradic

#577DD9 #D957BE #D9B357 #57D972

square

#577DD9 #D957BE #D9B357 #57D972

split-complementary

#577DD9 #D97257 #BED957

monochromatic

#214394 #2D5AC6 #577DD9 #89A4E4 #BBCAF0

Accessibility & contrast

On white

3.93

#577DD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#577DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD9

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD9	#FFFFFF	#000000	##000000
##577DD9	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DD

Deuteranopia (green-blind)

#417BD7

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577dd9;
/* rgb */ color: rgb(87, 125, 217);
/* oklch */ color: oklch(60.6% 0.146 265.4);

Tailwind

colors: {
  custom: {
    50: '#91a2e5',
    500: '#577dd9',
    950: '#000000',
  },
}

SCSS

$custom: #577dd9;
$custom-light: #91a2e5;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd9",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 217
  },
  "hsl": {
    "h": 222.462,
    "s": 63.107,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60594,
    "c": 0.14639,
    "h": 265.4
  },
  "luminance": 0.21703
}

Semantic roles & 50–950 ramp

primary

#577DD9

secondary

#DFD0AD

accent

#B642E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577DD9

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

Preview Lab → · Contrast checker → · Palette generator →