#577DC5#577DC5

#577DC5 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.4% C 0.119 H 262.3°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#577DC5
RGB	rgb(87, 125, 197)
HSL	hsl(219, 49%, 56%)
HSV	hsv(219, 56%, 77%)
CMYK	cmyk(55.8%, 36.5%, 0%, 22.7%)
CIE-LAB	lab(52.65, 8.00, -41.59)
CIE-LCH	lch(52.65, 42.35, 280.89°)
OKLab	oklab(59.43% -0.016 -0.1177)
OKLCH	oklch(59.43% 0.119 262.3)
XYZ	xyz(21.3387, 20.7230, 55.6880)
Luminance	0.2072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC5 #C59F57

analogous

#57B4C5 #577DC5 #6857C5

triadic

#577DC5 #C5577D #7DC557

tetradic

#577DC5 #C557B4 #C59F57 #57C568

square

#577DC5 #C557B4 #C59F57 #57C568

split-complementary

#577DC5 #C56857 #B4C557

monochromatic

#294578 #395FA6 #577DC5 #84A0D5 #B2C3E4

Accessibility & contrast

On white

4.08

#577DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#577DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC5

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC5	#FFFFFF	#000000	##000000
##577DC5	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C8

Deuteranopia (green-blind)

#5279C3

Tritanopia (blue-blind)

#0D8D98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577dc5;
/* rgb */ color: rgb(87, 125, 197);
/* oklch */ color: oklch(59.4% 0.119 262.3);

Tailwind

colors: {
  custom: {
    50: '#8ea2d7',
    500: '#577dc5',
    950: '#000000',
  },
}

SCSS

$custom: #577dc5;
$custom-light: #8ea2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc5",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 197
  },
  "hsl": {
    "h": 219.273,
    "s": 48.673,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59426,
    "c": 0.11875,
    "h": 262.3
  },
  "luminance": 0.20725
}

Semantic roles & 50–950 ramp

primary

#577DC5

secondary

#D3C3A5

accent

#A950D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC5

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

Preview Lab → · Contrast checker → · Palette generator →