#577DC3#577DC3

#577DC3 is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.3% C 0.116 H 261.8°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#577DC3
RGB	rgb(87, 125, 195)
HSL	hsl(219, 47%, 55%)
HSV	hsv(219, 55%, 76%)
CMYK	cmyk(55.4%, 35.9%, 0%, 23.5%)
CIE-LAB	lab(52.54, 7.35, -40.61)
CIE-LCH	lch(52.54, 41.27, 280.27°)
OKLab	oklab(59.32% -0.0165 -0.1148)
OKLCH	oklch(59.32% 0.116 261.8)
XYZ	xyz(21.1111, 20.6319, 54.4891)
Luminance	0.2063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC3 #C39D57

analogous

#57B3C3 #577DC3 #6757C3

triadic

#577DC3 #C3577D #7DC357

tetradic

#577DC3 #C357B3 #C39D57 #57C367

square

#577DC3 #C357B3 #C39D57 #57C367

split-complementary

#577DC3 #C36757 #B3C357

monochromatic

#2A4576 #3A5FA3 #577DC3 #84A0D3 #B1C3E3

Accessibility & contrast

On white

4.10

#577DC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#577DC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC3

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC3	#FFFFFF	#000000	##000000
##577DC3	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C6

Deuteranopia (green-blind)

#5379C2

Tritanopia (blue-blind)

#138C97

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577dc3;
/* rgb */ color: rgb(87, 125, 195);
/* oklch */ color: oklch(59.3% 0.116 261.8);

Tailwind

colors: {
  custom: {
    50: '#8ea2d5',
    500: '#577dc3',
    950: '#000000',
  },
}

SCSS

$custom: #577dc3;
$custom-light: #8ea2d5;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc3",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 195
  },
  "hsl": {
    "h": 218.889,
    "s": 47.368,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59315,
    "c": 0.11598,
    "h": 261.8
  },
  "luminance": 0.20634
}

Semantic roles & 50–950 ramp

primary

#577DC3

secondary

#D1C2A4

accent

#A851D7

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC3

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

Preview Lab → · Contrast checker → · Palette generator →