#577DC4#577DC4

#577DC4 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.4% C 0.117 H 262.1°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#577DC4
RGB	rgb(87, 125, 196)
HSL	hsl(219, 48%, 55%)
HSV	hsv(219, 56%, 77%)
CMYK	cmyk(55.6%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(52.59, 7.68, -41.10)
CIE-LCH	lch(52.59, 41.81, 280.58°)
OKLab	oklab(59.37% -0.0162 -0.1162)
OKLCH	oklch(59.37% 0.117 262.1)
XYZ	xyz(21.2245, 20.6773, 55.0865)
Luminance	0.2068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC4 #C49E57

analogous

#57B3C4 #577DC4 #6757C4

triadic

#577DC4 #C4577D #7DC457

tetradic

#577DC4 #C457B3 #C49E57 #57C467

square

#577DC4 #C457B3 #C49E57 #57C467

split-complementary

#577DC4 #C46757 #B3C457

monochromatic

#2A4577 #3A5FA4 #577DC4 #84A0D4 #B2C3E4

Accessibility & contrast

On white

4.09

#577DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#577DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC4

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC4	#FFFFFF	#000000	##000000
##577DC4	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C7

Deuteranopia (green-blind)

#5379C2

Tritanopia (blue-blind)

#108D97

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577dc4;
/* rgb */ color: rgb(87, 125, 196);
/* oklch */ color: oklch(59.4% 0.117 262.1);

Tailwind

colors: {
  custom: {
    50: '#8ea2d6',
    500: '#577dc4',
    950: '#000000',
  },
}

SCSS

$custom: #577dc4;
$custom-light: #8ea2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc4",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 219.083,
    "s": 48.018,
    "l": 55.49
  },
  "oklch": {
    "l": 0.5937,
    "c": 0.11737,
    "h": 262.1
  },
  "luminance": 0.20679
}

Semantic roles & 50–950 ramp

primary

#577DC4

secondary

#D2C2A5

accent

#A850D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC4

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

Preview Lab → · Contrast checker → · Palette generator →