#577EC1#577EC1

#577EC1 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.4% C 0.112 H 260.7°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#577EC1
RGB	rgb(87, 126, 193)
HSL	hsl(218, 46%, 55%)
HSV	hsv(218, 55%, 76%)
CMYK	cmyk(54.9%, 34.7%, 0%, 24.3%)
CIE-LAB	lab(52.73, 6.10, -39.18)
CIE-LCH	lch(52.73, 39.65, 278.86°)
OKLab	oklab(59.42% -0.0181 -0.1106)
OKLCH	oklch(59.42% 0.112 260.7)
XYZ	xyz(21.0137, 20.7966, 53.3485)
Luminance	0.2080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EC1 #C19A57

analogous

#57B3C1 #577EC1 #6557C1

triadic

#577EC1 #C1577E #7EC157

tetradic

#577EC1 #C157B3 #C19A57 #57C165

square

#577EC1 #C157B3 #C19A57 #57C165

split-complementary

#577EC1 #C16557 #B3C157

monochromatic

#2A4573 #3B60A0 #577EC1 #84A0D1 #B0C3E2

Accessibility & contrast

On white

4.07

#577EC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#577EC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EC1

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EC1	#FFFFFF	#000000	##000000
##577EC1	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)

#6383C4

Deuteranopia (green-blind)

#5679C0

Tritanopia (blue-blind)

#178D96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ec1;
/* rgb */ color: rgb(87, 126, 193);
/* oklch */ color: oklch(59.4% 0.112 260.7);

Tailwind

colors: {
  custom: {
    50: '#8ea3d4',
    500: '#577ec1',
    950: '#000000',
  },
}

SCSS

$custom: #577ec1;
$custom-light: #8ea3d4;
$custom-dark: #000000;

JSON

{
  "hex": "#577ec1",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 193
  },
  "hsl": {
    "h": 217.925,
    "s": 46.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59423,
    "c": 0.1121,
    "h": 260.7
  },
  "luminance": 0.20798
}

Semantic roles & 50–950 ramp

primary

#577EC1

secondary

#D0C0A4

accent

#A552D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577EC1

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

Preview Lab → · Contrast checker → · Palette generator →