#3B588F#3B588F

#3B588F is a mid, moderate blue. Relative luminance 0.099; OKLCH L 46.5% C 0.096 H 262.2°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#3B588F
RGB	rgb(59, 88, 143)
HSL	hsl(219, 42%, 40%)
HSV	hsv(219, 59%, 56%)
CMYK	cmyk(58.7%, 38.5%, 0%, 43.9%)
CIE-LAB	lab(37.65, 6.75, -33.70)
CIE-LCH	lch(37.65, 34.37, 281.33°)
OKLab	oklab(46.46% -0.013 -0.0955)
OKLCH	oklch(46.46% 0.096 262.2)
XYZ	xyz(10.2496, 9.8916, 27.3504)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B588F #8F723B

analogous

#3B828F #3B588F #483B8F

triadic

#3B588F #8F3B58 #588F3B

tetradic

#3B588F #8F3B82 #8F723B #3B8F48

square

#3B588F #8F3B82 #8F723B #3B8F48

split-complementary

#3B588F #8F483B #828F3B

monochromatic

#172338 #293D64 #3B588F #5074B7 #7C96C9

Accessibility & contrast

On white

7.05

#3B588F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3B588F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B588F

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B588F	#FFFFFF	#000000	##FFFFFF
##3B588F	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415D91

Deuteranopia (green-blind)

#36558E

Tritanopia (blue-blind)

#00646C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3b588f;
/* rgb */ color: rgb(59, 88, 143);
/* oklch */ color: oklch(46.5% 0.096 262.2);

Tailwind

colors: {
  custom: {
    50: '#7886b0',
    500: '#3b588f',
    950: '#000000',
  },
}

SCSS

$custom: #3b588f;
$custom-light: #7886b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b588f",
  "rgb": {
    "r": 59,
    "g": 88,
    "b": 143
  },
  "hsl": {
    "h": 219.286,
    "s": 41.584,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46459,
    "c": 0.09636,
    "h": 262.2
  },
  "luminance": 0.09892
}

Semantic roles & 50–950 ramp

primary

#3B588F

secondary

#B29D73

accent

#A756D1

background

#F7F8FA

surface

#EEEFF5

border

#C9CACF

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #3B588F

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

Preview Lab → · Contrast checker → · Palette generator →