#577EBE#577EBE

#577EBE is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.3% C 0.108 H 259.9°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#577EBE
RGB	rgb(87, 126, 190)
HSL	hsl(217, 44%, 54%)
HSV	hsv(217, 54%, 75%)
CMYK	cmyk(54.2%, 33.7%, 0%, 25.5%)
CIE-LAB	lab(52.58, 5.14, -37.69)
CIE-LCH	lch(52.58, 38.04, 277.76°)
OKLab	oklab(59.26% -0.0189 -0.1063)
OKLCH	oklch(59.26% 0.108 259.9)
XYZ	xyz(20.6824, 20.6641, 51.6039)
Luminance	0.2067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EBE #BE9757

analogous

#57B1BE #577EBE #6457BE

triadic

#577EBE #BE577E #7EBE57

tetradic

#577EBE #BE57B1 #BE9757 #57BE64

square

#577EBE #BE57B1 #BE9757 #57BE64

split-complementary

#577EBE #BE6457 #B1BE57

monochromatic

#2B456F #3C609C #577EBE #83A0CF #AFC2E0

Accessibility & contrast

On white

4.09

#577EBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#577EBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EBE

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EBE	#FFFFFF	#000000	##000000
##577EBE	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6483C1

Deuteranopia (green-blind)

#5879BD

Tritanopia (blue-blind)

#1C8C95

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #577ebe;
/* rgb */ color: rgb(87, 126, 190);
/* oklch */ color: oklch(59.3% 0.108 259.9);

Tailwind

colors: {
  custom: {
    50: '#8da3d2',
    500: '#577ebe',
    950: '#000000',
  },
}

SCSS

$custom: #577ebe;
$custom-light: #8da3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#577ebe",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 190
  },
  "hsl": {
    "h": 217.282,
    "s": 44.206,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59262,
    "c": 0.10798,
    "h": 259.9
  },
  "luminance": 0.20666
}

Semantic roles & 50–950 ramp

primary

#577EBE

secondary

#CEBEA3

accent

#A354D4

background

#F9FAFC

surface

#F1F3F9

border

#CBCDD2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #577EBE

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

Preview Lab → · Contrast checker → · Palette generator →