#577ADF#577ADF

#577ADF is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.3% C 0.158 H 267.2°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#577ADF
RGB	rgb(87, 122, 223)
HSL	hsl(225, 68%, 61%)
HSV	hsv(225, 61%, 87%)
CMYK	cmyk(61%, 45.3%, 0%, 12.5%)
CIE-LAB	lab(53.24, 18.46, -55.36)
CIE-LCH	lch(53.24, 58.36, 288.44°)
OKLab	oklab(60.35% -0.0077 -0.1581)
OKLCH	oklch(60.35% 0.158 267.2)
XYZ	xyz(24.2048, 21.2709, 72.6279)
Luminance	0.2127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ADF #DFBC57

analogous

#57BEDF #577ADF #7857DF

triadic

#577ADF #DF577A #7ADF57

tetradic

#577ADF #DF57BE #DFBC57 #57DF78

square

#577ADF #DF57BE #DFBC57 #57DF78

split-complementary

#577ADF #DF7857 #BEDF57

monochromatic

#1E3F9E #2853D1 #577ADF #8AA3E9 #BECBF3

Accessibility & contrast

On white

4.00

#577ADF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#577ADF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ADF

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ADF	#FFFFFF	#000000	##000000
##577ADF	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A86E3

Deuteranopia (green-blind)

#3479DD

Tritanopia (blue-blind)

#0091A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577adf;
/* rgb */ color: rgb(87, 122, 223);
/* oklch */ color: oklch(60.3% 0.158 267.2);

Tailwind

colors: {
  custom: {
    50: '#92a0e9',
    500: '#577adf',
    950: '#000000',
  },
}

SCSS

$custom: #577adf;
$custom-light: #92a0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#577adf",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 223
  },
  "hsl": {
    "h": 224.559,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.60349,
    "c": 0.15825,
    "h": 267.2
  },
  "luminance": 0.21273
}

Semantic roles & 50–950 ramp

primary

#577ADF

secondary

#E3D5AF

accent

#A016D0

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577ADF

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

Preview Lab → · Contrast checker → · Palette generator →