#577DD5#577DD5

#577DD5 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.141 H 264.9°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#577DD5
RGB	rgb(87, 125, 213)
HSL	hsl(222, 60%, 59%)
HSV	hsv(222, 59%, 84%)
CMYK	cmyk(59.2%, 41.3%, 0%, 16.5%)
CIE-LAB	lab(53.49, 13.28, -49.34)
CIE-LCH	lch(53.49, 51.09, 285.06°)
OKLab	oklab(60.35% -0.0125 -0.1403)
OKLCH	oklch(60.35% 0.141 264.9)
XYZ	xyz(23.2702, 21.4956, 65.8607)
Luminance	0.2150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD5 #D5AF57

analogous

#57BCD5 #577DD5 #7057D5

triadic

#577DD5 #D5577D #7DD557

tetradic

#577DD5 #D557BC #D5AF57 #57D570

square

#577DD5 #D557BC #D5AF57 #57D570

split-complementary

#577DD5 #D57057 #BCD557

monochromatic

#24448E #305BBF #577DD5 #88A3E1 #B9C9ED

Accessibility & contrast

On white

3.96

#577DD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#577DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD5

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD5	#FFFFFF	#000000	##000000
##577DD5	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5686D8

Deuteranopia (green-blind)

#457AD3

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577dd5;
/* rgb */ color: rgb(87, 125, 213);
/* oklch */ color: oklch(60.4% 0.141 264.9);

Tailwind

colors: {
  custom: {
    50: '#90a2e2',
    500: '#577dd5',
    950: '#000000',
  },
}

SCSS

$custom: #577dd5;
$custom-light: #90a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd5",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 213
  },
  "hsl": {
    "h": 221.905,
    "s": 60,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60352,
    "c": 0.1409,
    "h": 264.9
  },
  "luminance": 0.21498
}

Semantic roles & 50–950 ramp

primary

#577DD5

secondary

#DDCEAB

accent

#B345E3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577DD5

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

Preview Lab → · Contrast checker → · Palette generator →