#577DC7#577DC7

#577DC7 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.5% C 0.122 H 262.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#577DC7
RGB	rgb(87, 125, 199)
HSL	hsl(220, 50%, 56%)
HSV	hsv(220, 56%, 78%)
CMYK	cmyk(56.3%, 37.2%, 0%, 22%)
CIE-LAB	lab(52.75, 8.66, -42.57)
CIE-LCH	lch(52.75, 43.44, 281.49°)
OKLab	oklab(59.54% -0.0155 -0.1205)
OKLCH	oklch(59.54% 0.122 262.7)
XYZ	xyz(21.5694, 20.8153, 56.9029)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC7 #C7A157

analogous

#57B5C7 #577DC7 #6957C7

triadic

#577DC7 #C7577D #7DC757

tetradic

#577DC7 #C757B5 #C7A157 #57C769

square

#577DC7 #C757B5 #C7A157 #57C769

split-complementary

#577DC7 #C76957 #B5C757

monochromatic

#29457B #385EA9 #577DC7 #85A1D6 #B3C4E6

Accessibility & contrast

On white

4.07

#577DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#577DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC7

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC7	#FFFFFF	#000000	##000000
##577DC7	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F83CA

Deuteranopia (green-blind)

#5179C5

Tritanopia (blue-blind)

#068D98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577dc7;
/* rgb */ color: rgb(87, 125, 199);
/* oklch */ color: oklch(59.5% 0.122 262.7);

Tailwind

colors: {
  custom: {
    50: '#8ea2d8',
    500: '#577dc7',
    950: '#000000',
  },
}

SCSS

$custom: #577dc7;
$custom-light: #8ea2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc7",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 199
  },
  "hsl": {
    "h": 219.643,
    "s": 50,
    "l": 56.078
  },
  "oklch": {
    "l": 0.59538,
    "c": 0.12153,
    "h": 262.7
  },
  "luminance": 0.20817
}

Semantic roles & 50–950 ramp

primary

#577DC7

secondary

#D4C4A6

accent

#AA4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC7

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

Preview Lab → · Contrast checker → · Palette generator →