#577DC0#577DC0

#577DC0 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.2% C 0.112 H 261.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#577DC0
RGB	rgb(87, 125, 192)
HSL	hsl(218, 45%, 55%)
HSV	hsv(218, 55%, 75%)
CMYK	cmyk(54.7%, 34.9%, 0%, 24.7%)
CIE-LAB	lab(52.40, 6.38, -39.13)
CIE-LCH	lch(52.40, 39.64, 279.26°)
OKLab	oklab(59.15% -0.0172 -0.1105)
OKLCH	oklch(59.15% 0.112 261.1)
XYZ	xyz(20.7753, 20.4976, 52.7206)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC0 #C09A57

analogous

#57B2C0 #577DC0 #6657C0

triadic

#577DC0 #C0577D #7DC057

tetradic

#577DC0 #C057B2 #C09A57 #57C066

square

#577DC0 #C057B2 #C09A57 #57C066

split-complementary

#577DC0 #C06657 #B2C057

monochromatic

#2B4472 #3B5F9E #577DC0 #849FD1 #B0C2E1

Accessibility & contrast

On white

4.12

#577DC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#577DC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC0

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC0	#FFFFFF	#000000	##000000
##577DC0	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C3

Deuteranopia (green-blind)

#5579BF

Tritanopia (blue-blind)

#198C95

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577dc0;
/* rgb */ color: rgb(87, 125, 192);
/* oklch */ color: oklch(59.2% 0.112 261.1);

Tailwind

colors: {
  custom: {
    50: '#8da2d3',
    500: '#577dc0',
    950: '#000000',
  },
}

SCSS

$custom: #577dc0;
$custom-light: #8da2d3;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc0",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 192
  },
  "hsl": {
    "h": 218.286,
    "s": 45.455,
    "l": 54.706
  },
  "oklch": {
    "l": 0.5915,
    "c": 0.11183,
    "h": 261.1
  },
  "luminance": 0.20499
}

Semantic roles & 50–950 ramp

primary

#577DC0

secondary

#D0C0A3

accent

#A653D5

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC0

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

Preview Lab → · Contrast checker → · Palette generator →