#2B59BB#2B59BB

#2B59BB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.0% C 0.163 H 262.9°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#2B59BB
RGB	rgb(43, 89, 187)
HSL	hsl(221, 63%, 45%)
HSV	hsv(221, 77%, 73%)
CMYK	cmyk(77%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(39.99, 19.77, -56.17)
CIE-LCH	lch(39.99, 59.54, 289.39°)
OKLab	oklab(48.95% -0.0201 -0.1617)
OKLCH	oklch(48.95% 0.163 262.9)
XYZ	xyz(13.5351, 11.2447, 48.4612)
Luminance	0.1125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B59BB #BB8D2B

analogous

#2BA1BB #2B59BB #452BBB

triadic

#2B59BB #BB2B59 #59BB2B

tetradic

#2B59BB #BB2BA1 #BB8D2B #2BBB45

square

#2B59BB #BB2BA1 #BB8D2B #2BBB45

split-complementary

#2B59BB #BB452B #A1BB2B

monochromatic

#142A57 #204189 #2B59BB #4D79D6 #7F9EE2

Accessibility & contrast

On white

6.46

#2B59BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#2B59BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B59BB

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B59BB	#FFFFFF	#000000	##FFFFFF
##2B59BB	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1465BE

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b59bb;
/* rgb */ color: rgb(43, 89, 187);
/* oklch */ color: oklch(49.0% 0.163 262.9);

Tailwind

colors: {
  custom: {
    50: '#7a87d0',
    500: '#2b59bb',
    950: '#000000',
  },
}

SCSS

$custom: #2b59bb;
$custom-light: #7a87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b59bb",
  "rgb": {
    "r": 43,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 220.833,
    "s": 62.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48953,
    "c": 0.163,
    "h": 262.9
  },
  "luminance": 0.11246
}

Semantic roles & 50–950 ramp

primary

#2B59BB

secondary

#CAB078

accent

#B142E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2B59BB

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

Preview Lab → · Contrast checker → · Palette generator →