#577EC0#577EC0

#577EC0 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.4% C 0.111 H 260.4°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#577EC0
RGB	rgb(87, 126, 192)
HSL	hsl(218, 45%, 55%)
HSV	hsv(218, 55%, 75%)
CMYK	cmyk(54.7%, 34.4%, 0%, 24.7%)
CIE-LAB	lab(52.68, 5.78, -38.68)
CIE-LCH	lch(52.68, 39.11, 278.50°)
OKLab	oklab(59.37% -0.0184 -0.1092)
OKLCH	oklch(59.37% 0.111 260.4)
XYZ	xyz(20.9025, 20.7521, 52.7630)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EC0 #C09957

analogous

#57B3C0 #577EC0 #6457C0

triadic

#577EC0 #C0577E #7EC057

tetradic

#577EC0 #C057B3 #C09957 #57C064

square

#577EC0 #C057B3 #C09957 #57C064

split-complementary

#577EC0 #C06457 #B3C057

monochromatic

#2B4572 #3B609E #577EC0 #84A0D1 #B0C2E1

Accessibility & contrast

On white

4.08

#577EC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#577EC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EC0

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EC0	#FFFFFF	#000000	##000000
##577EC0	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6483C3

Deuteranopia (green-blind)

#5779BF

Tritanopia (blue-blind)

#188D96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ec0;
/* rgb */ color: rgb(87, 126, 192);
/* oklch */ color: oklch(59.4% 0.111 260.4);

Tailwind

colors: {
  custom: {
    50: '#8da3d3',
    500: '#577ec0',
    950: '#000000',
  },
}

SCSS

$custom: #577ec0;
$custom-light: #8da3d3;
$custom-dark: #000000;

JSON

{
  "hex": "#577ec0",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 192
  },
  "hsl": {
    "h": 217.714,
    "s": 45.455,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59369,
    "c": 0.11073,
    "h": 260.4
  },
  "luminance": 0.20754
}

Semantic roles & 50–950 ramp

primary

#577EC0

secondary

#D0BFA3

accent

#A553D5

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577EC0

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

Preview Lab → · Contrast checker → · Palette generator →