#577DB6#577DB6

#577DB6 is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.6% C 0.098 H 258.3°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#577DB6
RGB	rgb(87, 125, 182)
HSL	hsl(216, 39%, 53%)
HSV	hsv(216, 52%, 71%)
CMYK	cmyk(52.2%, 31.3%, 0%, 28.6%)
CIE-LAB	lab(51.92, 3.18, -34.14)
CIE-LCH	lch(51.92, 34.29, 275.33°)
OKLab	oklab(58.62% -0.0199 -0.096)
OKLCH	oklch(58.62% 0.098 258.3)
XYZ	xyz(19.7047, 20.0694, 47.0823)
Luminance	0.2007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DB6 #B69057

analogous

#57ACB6 #577DB6 #6057B6

triadic

#577DB6 #B6577D #7DB657

tetradic

#577DB6 #B657AC #B69057 #57B660

square

#577DB6 #B657AC #B69057 #57B660

split-complementary

#577DB6 #B66057 #ACB657

monochromatic

#2C4466 #3F6091 #577DB6 #829EC9 #ACBFDB

Accessibility & contrast

On white

4.19

#577DB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#577DB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DB6

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DB6	#FFFFFF	#000000	##000000
##577DB6	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6781B8

Deuteranopia (green-blind)

#5B78B5

Tritanopia (blue-blind)

#278A91

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577db6;
/* rgb */ color: rgb(87, 125, 182);
/* oklch */ color: oklch(58.6% 0.098 258.3);

Tailwind

colors: {
  custom: {
    50: '#8ca2cc',
    500: '#577db6',
    950: '#000000',
  },
}

SCSS

$custom: #577db6;
$custom-light: #8ca2cc;
$custom-dark: #000000;

JSON

{
  "hex": "#577db6",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 182
  },
  "hsl": {
    "h": 216,
    "s": 39.419,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58619,
    "c": 0.09805,
    "h": 258.3
  },
  "luminance": 0.20071
}

Semantic roles & 50–950 ramp

primary

#577DB6

secondary

#C9B9A0

accent

#A058CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #577DB6

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

Preview Lab → · Contrast checker → · Palette generator →