#577BC1#577BC1

#577BC1 is a mid, moderate blue. Relative luminance 0.200; OKLCH L 58.8% C 0.115 H 262.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#577BC1
RGB	rgb(87, 123, 193)
HSL	hsl(220, 46%, 55%)
HSV	hsv(220, 55%, 76%)
CMYK	cmyk(54.9%, 36.3%, 0%, 24.3%)
CIE-LAB	lab(51.88, 7.91, -40.51)
CIE-LCH	lch(51.88, 41.27, 281.05°)
OKLab	oklab(58.77% -0.0147 -0.1145)
OKLCH	oklch(58.77% 0.115 262.7)
XYZ	xyz(20.6358, 20.0408, 53.2226)
Luminance	0.2004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BC1 #C19D57

analogous

#57B0C1 #577BC1 #6857C1

triadic

#577BC1 #C1577B #7BC157

tetradic

#577BC1 #C157B0 #C19D57 #57C168

square

#577BC1 #C157B0 #C19D57 #57C168

split-complementary

#577BC1 #C16857 #B0C157

monochromatic

#2A4373 #3B5DA0 #577BC1 #849ED1 #B0C1E2

Accessibility & contrast

On white

4.19

#577BC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#577BC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BC1

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BC1	#FFFFFF	#000000	##000000
##577BC1	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F81C4

Deuteranopia (green-blind)

#5277C0

Tritanopia (blue-blind)

#188A95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577bc1;
/* rgb */ color: rgb(87, 123, 193);
/* oklch */ color: oklch(58.8% 0.115 262.7);

Tailwind

colors: {
  custom: {
    50: '#8ea0d4',
    500: '#577bc1',
    950: '#000000',
  },
}

SCSS

$custom: #577bc1;
$custom-light: #8ea0d4;
$custom-dark: #000000;

JSON

{
  "hex": "#577bc1",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 193
  },
  "hsl": {
    "h": 219.623,
    "s": 46.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58769,
    "c": 0.11547,
    "h": 262.7
  },
  "luminance": 0.20042
}

Semantic roles & 50–950 ramp

primary

#577BC1

secondary

#D0C1A4

accent

#A952D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577BC1

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

Preview Lab → · Contrast checker → · Palette generator →