#577EC2#577EC2

#577EC2 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.5% C 0.113 H 260.9°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#577EC2
RGB	rgb(87, 126, 194)
HSL	hsl(218, 47%, 55%)
HSV	hsv(218, 55%, 76%)
CMYK	cmyk(55.2%, 35.1%, 0%, 23.9%)
CIE-LAB	lab(52.78, 6.43, -39.67)
CIE-LCH	lch(52.78, 40.19, 279.20°)
OKLab	oklab(59.48% -0.0179 -0.1121)
OKLCH	oklch(59.48% 0.113 260.9)
XYZ	xyz(21.1256, 20.8413, 53.9380)
Luminance	0.2084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EC2 #C29B57

analogous

#57B3C2 #577EC2 #6657C2

triadic

#577EC2 #C2577E #7EC257

tetradic

#577EC2 #C257B3 #C29B57 #57C266

square

#577EC2 #C257B3 #C29B57 #57C266

split-complementary

#577EC2 #C26657 #B3C257

monochromatic

#2A4574 #3B60A1 #577EC2 #84A0D2 #B1C3E3

Accessibility & contrast

On white

4.06

#577EC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#577EC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EC2

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EC2	#FFFFFF	#000000	##000000
##577EC2	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6383C5

Deuteranopia (green-blind)

#5579C1

Tritanopia (blue-blind)

#148D97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #577ec2;
/* rgb */ color: rgb(87, 126, 194);
/* oklch */ color: oklch(59.5% 0.113 260.9);

Tailwind

colors: {
  custom: {
    50: '#8ea3d5',
    500: '#577ec2',
    950: '#000000',
  },
}

SCSS

$custom: #577ec2;
$custom-light: #8ea3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#577ec2",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 194
  },
  "hsl": {
    "h": 218.131,
    "s": 46.725,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59478,
    "c": 0.11349,
    "h": 260.9
  },
  "luminance": 0.20843
}

Semantic roles & 50–950 ramp

primary

#577EC2

secondary

#D1C0A4

accent

#A651D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #577EC2

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

Preview Lab → · Contrast checker → · Palette generator →