#577DC1#577DC1

#577DC1 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.2% C 0.113 H 261.4°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#577DC1
RGB	rgb(87, 125, 193)
HSL	hsl(218, 46%, 55%)
HSV	hsv(218, 55%, 76%)
CMYK	cmyk(54.9%, 35.2%, 0%, 24.3%)
CIE-LAB	lab(52.44, 6.71, -39.62)
CIE-LCH	lch(52.44, 40.18, 279.61°)
OKLab	oklab(59.21% -0.017 -0.1119)
OKLCH	oklch(59.21% 0.113 261.4)
XYZ	xyz(20.8864, 20.5421, 53.3061)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DC1 #C19B57

analogous

#57B2C1 #577DC1 #6657C1

triadic

#577DC1 #C1577D #7DC157

tetradic

#577DC1 #C157B2 #C19B57 #57C166

square

#577DC1 #C157B2 #C19B57 #57C166

split-complementary

#577DC1 #C16657 #B2C157

monochromatic

#2A4573 #3B5FA0 #577DC1 #84A0D1 #B0C2E2

Accessibility & contrast

On white

4.11

#577DC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#577DC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DC1

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DC1	#FFFFFF	#000000	##000000
##577DC1	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C4

Deuteranopia (green-blind)

#5579C0

Tritanopia (blue-blind)

#178C96

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577dc1;
/* rgb */ color: rgb(87, 125, 193);
/* oklch */ color: oklch(59.2% 0.113 261.4);

Tailwind

colors: {
  custom: {
    50: '#8ea2d4',
    500: '#577dc1',
    950: '#000000',
  },
}

SCSS

$custom: #577dc1;
$custom-light: #8ea2d4;
$custom-dark: #000000;

JSON

{
  "hex": "#577dc1",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 193
  },
  "hsl": {
    "h": 218.491,
    "s": 46.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59205,
    "c": 0.11321,
    "h": 261.4
  },
  "luminance": 0.20544
}

Semantic roles & 50–950 ramp

primary

#577DC1

secondary

#D0C0A4

accent

#A752D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577DC1

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

Preview Lab → · Contrast checker → · Palette generator →