#577CC6#577CC6

#577CC6 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.3% C 0.121 H 263.1°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#577CC6
RGB	rgb(87, 124, 198)
HSL	hsl(220, 49%, 56%)
HSV	hsv(220, 56%, 78%)
CMYK	cmyk(56.1%, 37.4%, 0%, 22.4%)
CIE-LAB	lab(52.42, 8.94, -42.52)
CIE-LCH	lch(52.42, 43.45, 281.87°)
OKLab	oklab(59.27% -0.0146 -0.1204)
OKLCH	oklch(59.27% 0.121 263.1)
XYZ	xyz(21.3277, 20.5171, 56.2514)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CC6 #C6A157

analogous

#57B3C6 #577CC6 #6957C6

triadic

#577CC6 #C6577C #7CC657

tetradic

#577CC6 #C657B3 #C6A157 #57C669

square

#577CC6 #C657B3 #C6A157 #57C669

split-complementary

#577CC6 #C66957 #B3C657

monochromatic

#294479 #395DA7 #577CC6 #85A0D6 #B2C3E5

Accessibility & contrast

On white

4.11

#577CC6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#577CC6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CC6

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CC6	#FFFFFF	#000000	##000000
##577CC6	1.00	4.11	5.10	5.10
#FFFFFF	4.11	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)

#5E83C9

Deuteranopia (green-blind)

#5078C4

Tritanopia (blue-blind)

#0B8C97

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577cc6;
/* rgb */ color: rgb(87, 124, 198);
/* oklch */ color: oklch(59.3% 0.121 263.1);

Tailwind

colors: {
  custom: {
    50: '#8ea1d7',
    500: '#577cc6',
    950: '#000000',
  },
}

SCSS

$custom: #577cc6;
$custom-light: #8ea1d7;
$custom-dark: #000000;

JSON

{
  "hex": "#577cc6",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 198
  },
  "hsl": {
    "h": 220,
    "s": 49.333,
    "l": 55.882
  },
  "oklch": {
    "l": 0.59265,
    "c": 0.12129,
    "h": 263.1
  },
  "luminance": 0.20519
}

Semantic roles & 50–950 ramp

primary

#577CC6

secondary

#D3C4A5

accent

#AB4FD9

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577CC6

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

Preview Lab → · Contrast checker → · Palette generator →