#2B579B#2B579B

#2B579B is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.2% C 0.121 H 258.9°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#2B579B
RGB	rgb(43, 87, 155)
HSL	hsl(216, 57%, 39%)
HSV	hsv(216, 72%, 61%)
CMYK	cmyk(72.3%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(37.29, 8.83, -41.55)
CIE-LCH	lch(37.29, 42.48, 281.99°)
OKLab	oklab(46.2% -0.0233 -0.1188)
OKLCH	oklch(46.2% 0.121 258.9)
XYZ	xyz(10.3187, 9.6954, 32.3316)
Luminance	0.0970 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B579B #9B6F2B

analogous

#2B8F9B #2B579B #372B9B

triadic

#2B579B #9B2B57 #579B2B

tetradic

#2B579B #9B2B8F #9B6F2B #2B9B37

square

#2B579B #9B2B8F #9B6F2B #2B9B37

split-complementary

#2B579B #9B372B #8F9B2B

monochromatic

#10213B #1E3C6B #2B579B #3B72C9 #6B95D6

Accessibility & contrast

On white

7.14

#2B579B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2B579B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B579B

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B579B	#FFFFFF	#000000	##FFFFFF
##2B579B	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365D9E

Deuteranopia (green-blind)

#22539A

Tritanopia (blue-blind)

#006771

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2b579b;
/* rgb */ color: rgb(43, 87, 155);
/* oklch */ color: oklch(46.2% 0.121 258.9);

Tailwind

colors: {
  custom: {
    50: '#7385b9',
    500: '#2b579b',
    950: '#000000',
  },
}

SCSS

$custom: #2b579b;
$custom-light: #7385b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b579b",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 216.429,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.46202,
    "c": 0.12105,
    "h": 258.9
  },
  "luminance": 0.09697
}

Semantic roles & 50–950 ramp

primary

#2B579B

secondary

#BC9A65

accent

#A448E0

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #2B579B

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

Preview Lab → · Contrast checker → · Palette generator →