#577FC1#577FC1

#577FC1 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.6% C 0.111 H 260.0°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#577FC1
RGB	rgb(87, 127, 193)
HSL	hsl(217, 46%, 55%)
HSV	hsv(217, 55%, 76%)
CMYK	cmyk(54.9%, 34.2%, 0%, 24.3%)
CIE-LAB	lab(53.01, 5.50, -38.73)
CIE-LCH	lch(53.01, 39.12, 278.09°)
OKLab	oklab(59.64% -0.0193 -0.1093)
OKLCH	oklch(59.64% 0.111 260)
XYZ	xyz(21.1422, 21.0536, 53.3914)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FC1 #C19957

analogous

#57B4C1 #577FC1 #6457C1

triadic

#577FC1 #C1577F #7FC157

tetradic

#577FC1 #C157B4 #C19957 #57C164

square

#577FC1 #C157B4 #C19957 #57C164

split-complementary

#577FC1 #C16457 #B4C157

monochromatic

#2A4673 #3B61A0 #577FC1 #84A1D1 #B0C3E2

Accessibility & contrast

On white

4.03

#577FC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#577FC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FC1

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FC1	#FFFFFF	#000000	##000000
##577FC1	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6484C4

Deuteranopia (green-blind)

#577AC0

Tritanopia (blue-blind)

#168E97

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #577fc1;
/* rgb */ color: rgb(87, 127, 193);
/* oklch */ color: oklch(59.6% 0.111 260.0);

Tailwind

colors: {
  custom: {
    50: '#8ea3d4',
    500: '#577fc1',
    950: '#000000',
  },
}

SCSS

$custom: #577fc1;
$custom-light: #8ea3d4;
$custom-dark: #000000;

JSON

{
  "hex": "#577fc1",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 193
  },
  "hsl": {
    "h": 217.358,
    "s": 46.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59643,
    "c": 0.11102,
    "h": 260
  },
  "luminance": 0.21055
}

Semantic roles & 50–950 ramp

primary

#577FC1

secondary

#D0BFA4

accent

#A452D6

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #577FC1

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

Preview Lab → · Contrast checker → · Palette generator →