#577ABB#577ABB

#577ABB is a mid, moderate blue. Relative luminance 0.195; OKLCH L 58.2% C 0.108 H 262.0°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#577ABB
RGB	rgb(87, 122, 187)
HSL	hsl(219, 42%, 54%)
HSV	hsv(219, 53%, 73%)
CMYK	cmyk(53.5%, 34.8%, 0%, 26.7%)
CIE-LAB	lab(51.30, 6.58, -37.98)
CIE-LCH	lch(51.30, 38.55, 279.83°)
OKLab	oklab(58.22% -0.015 -0.1072)
OKLCH	oklch(58.22% 0.108 262)
XYZ	xyz(19.8566, 19.5317, 49.7277)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577ABB #BB9857

analogous

#57ACBB #577ABB #6657BB

triadic

#577ABB #BB577A #7ABB57

tetradic

#577ABB #BB57AC #BB9857 #57BB66

square

#577ABB #BB57AC #BB9857 #57BB66

split-complementary

#577ABB #BB6657 #ACBB57

monochromatic

#2C426C #3D5D97 #577ABB #839CCD #AEBFDE

Accessibility & contrast

On white

4.28

#577ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#577ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577ABB

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577ABB	#FFFFFF	#000000	##000000
##577ABB	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBE

Deuteranopia (green-blind)

#5476BA

Tritanopia (blue-blind)

#228892

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577abb;
/* rgb */ color: rgb(87, 122, 187);
/* oklch */ color: oklch(58.2% 0.108 262.0);

Tailwind

colors: {
  custom: {
    50: '#8da0d0',
    500: '#577abb',
    950: '#000000',
  },
}

SCSS

$custom: #577abb;
$custom-light: #8da0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#577abb",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 187
  },
  "hsl": {
    "h": 219,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58221,
    "c": 0.10822,
    "h": 262
  },
  "luminance": 0.19533
}

Semantic roles & 50–950 ramp

primary

#577ABB

secondary

#CCBDA2

accent

#A756D2

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #577ABB

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

Preview Lab → · Contrast checker → · Palette generator →