#577FC7#577FC7

#577FC7 is a mid, moderate blue. Relative luminance 0.213; OKLCH L 60.0% C 0.119 H 261.4°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#577FC7
RGB	rgb(87, 127, 199)
HSL	hsl(219, 50%, 56%)
HSV	hsv(219, 56%, 78%)
CMYK	cmyk(56.3%, 36.2%, 0%, 22%)
CIE-LAB	lab(53.31, 7.45, -41.69)
CIE-LCH	lch(53.31, 42.35, 280.13°)
OKLab	oklab(59.97% -0.0178 -0.1179)
OKLCH	oklch(59.97% 0.119 261.4)
XYZ	xyz(21.8251, 21.3268, 56.9881)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FC7 #C79F57

analogous

#57B7C7 #577FC7 #6757C7

triadic

#577FC7 #C7577F #7FC757

tetradic

#577FC7 #C757B7 #C79F57 #57C767

square

#577FC7 #C757B7 #C79F57 #57C767

split-complementary

#577FC7 #C76757 #B7C757

monochromatic

#29467B #3860A9 #577FC7 #85A2D6 #B3C5E6

Accessibility & contrast

On white

3.99

#577FC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#577FC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FC7

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FC7	#FFFFFF	#000000	##000000
##577FC7	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6285CA

Deuteranopia (green-blind)

#537BC5

Tritanopia (blue-blind)

#048F99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577fc7;
/* rgb */ color: rgb(87, 127, 199);
/* oklch */ color: oklch(60.0% 0.119 261.4);

Tailwind

colors: {
  custom: {
    50: '#8ea3d8',
    500: '#577fc7',
    950: '#000000',
  },
}

SCSS

$custom: #577fc7;
$custom-light: #8ea3d8;
$custom-dark: #000000;

JSON

{
  "hex": "#577fc7",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 199
  },
  "hsl": {
    "h": 218.571,
    "s": 50,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59971,
    "c": 0.11926,
    "h": 261.4
  },
  "luminance": 0.21329
}

Semantic roles & 50–950 ramp

primary

#577FC7

secondary

#D4C4A6

accent

#A84EDA

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #577FC7

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

Preview Lab → · Contrast checker → · Palette generator →