#577DD3#577DD3

#577DD3 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.138 H 264.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#577DD3
RGB	rgb(87, 125, 211)
HSL	hsl(222, 58%, 58%)
HSV	hsv(222, 59%, 83%)
CMYK	cmyk(58.8%, 40.8%, 0%, 17.3%)
CIE-LAB	lab(53.38, 12.61, -48.38)
CIE-LCH	lch(53.38, 50.00, 284.61°)
OKLab	oklab(60.23% -0.0129 -0.1375)
OKLCH	oklch(60.23% 0.138 264.6)
XYZ	xyz(23.0179, 21.3947, 64.5320)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DD3 #D3AD57

analogous

#57BBD3 #577DD3 #6F57D3

triadic

#577DD3 #D3577D #7DD357

tetradic

#577DD3 #D357BB #D3AD57 #57D36F

square

#577DD3 #D357BB #D3AD57 #57D36F

split-complementary

#577DD3 #D36F57 #BBD357

monochromatic

#24448B #315CBC #577DD3 #87A3E0 #B8C8EC

Accessibility & contrast

On white

3.98

#577DD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#577DD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DD3

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DD3	#FFFFFF	#000000	##000000
##577DD3	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5886D6

Deuteranopia (green-blind)

#477AD1

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577dd3;
/* rgb */ color: rgb(87, 125, 211);
/* oklch */ color: oklch(60.2% 0.138 264.6);

Tailwind

colors: {
  custom: {
    50: '#90a2e1',
    500: '#577dd3',
    950: '#000000',
  },
}

SCSS

$custom: #577dd3;
$custom-light: #90a2e1;
$custom-dark: #000000;

JSON

{
  "hex": "#577dd3",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 211
  },
  "hsl": {
    "h": 221.613,
    "s": 58.491,
    "l": 58.431
  },
  "oklch": {
    "l": 0.60233,
    "c": 0.13814,
    "h": 264.6
  },
  "luminance": 0.21397
}

Semantic roles & 50–950 ramp

primary

#577DD3

secondary

#DCCCAA

accent

#B246E2

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #577DD3

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

Preview Lab → · Contrast checker → · Palette generator →