#577FC4#577FC4

#577FC4 is a mid, moderate blue. Relative luminance 0.212; OKLCH L 59.8% C 0.115 H 260.7°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#577FC4
RGB	rgb(87, 127, 196)
HSL	hsl(218, 48%, 55%)
HSV	hsv(218, 56%, 77%)
CMYK	cmyk(55.6%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(53.16, 6.47, -40.21)
CIE-LCH	lch(53.16, 40.73, 279.15°)
OKLab	oklab(59.81% -0.0185 -0.1136)
OKLCH	oklch(59.81% 0.115 260.7)
XYZ	xyz(21.4802, 21.1888, 55.1718)
Luminance	0.2119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FC4 #C49C57

analogous

#57B5C4 #577FC4 #6557C4

triadic

#577FC4 #C4577F #7FC457

tetradic

#577FC4 #C457B5 #C49C57 #57C465

square

#577FC4 #C457B5 #C49C57 #57C465

split-complementary

#577FC4 #C46557 #B5C457

monochromatic

#2A4677 #3A61A4 #577FC4 #84A2D4 #B2C4E4

Accessibility & contrast

On white

4.01

#577FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#577FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FC4

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FC4	#FFFFFF	#000000	##000000
##577FC4	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6384C7

Deuteranopia (green-blind)

#557AC3

Tritanopia (blue-blind)

#0F8E98

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577fc4;
/* rgb */ color: rgb(87, 127, 196);
/* oklch */ color: oklch(59.8% 0.115 260.7);

Tailwind

colors: {
  custom: {
    50: '#8ea3d6',
    500: '#577fc4',
    950: '#000000',
  },
}

SCSS

$custom: #577fc4;
$custom-light: #8ea3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#577fc4",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 217.982,
    "s": 48.018,
    "l": 55.49
  },
  "oklch": {
    "l": 0.59806,
    "c": 0.11514,
    "h": 260.7
  },
  "luminance": 0.21191
}

Semantic roles & 50–950 ramp

primary

#577FC4

secondary

#D2C1A5

accent

#A650D8

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #577FC4

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

Preview Lab → · Contrast checker → · Palette generator →