#2B539B#2B539B

#2B539B is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.3% C 0.126 H 261.1°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#2B539B
RGB	rgb(43, 83, 155)
HSL	hsl(219, 57%, 39%)
HSV	hsv(219, 72%, 61%)
CMYK	cmyk(72.3%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(36.11, 11.46, -43.44)
CIE-LCH	lch(36.11, 44.93, 284.78°)
OKLab	oklab(45.29% -0.0195 -0.1244)
OKLCH	oklch(45.29% 0.126 261.1)
XYZ	xyz(10.0038, 9.0656, 32.2266)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B539B #9B732B

analogous

#2B8B9B #2B539B #3B2B9B

triadic

#2B539B #9B2B53 #539B2B

tetradic

#2B539B #9B2B8B #9B732B #2B9B3B

square

#2B539B #9B2B8B #9B732B #2B9B3B

split-complementary

#2B539B #9B3B2B #8B9B2B

monochromatic

#10203B #1E396B #2B539B #3B6DC9 #6B91D6

Accessibility & contrast

On white

7.46

#2B539B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2B539B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B539B

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B539B	#FFFFFF	#000000	##FFFFFF
##2B539B	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5A9E

Deuteranopia (green-blind)

#17509A

Tritanopia (blue-blind)

#00646F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2b539b;
/* rgb */ color: rgb(43, 83, 155);
/* oklch */ color: oklch(45.3% 0.126 261.1);

Tailwind

colors: {
  custom: {
    50: '#7382b9',
    500: '#2b539b',
    950: '#000000',
  },
}

SCSS

$custom: #2b539b;
$custom-light: #7382b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b539b",
  "rgb": {
    "r": 43,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 218.571,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.45292,
    "c": 0.12593,
    "h": 261.1
  },
  "luminance": 0.09067
}

Semantic roles & 50–950 ramp

primary

#2B539B

secondary

#BC9D65

accent

#AA48E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2B539B

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

Preview Lab → · Contrast checker → · Palette generator →