#2B5BBB#2B5BBB

#2B5BBB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.4% C 0.161 H 262.2°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BBB
RGB	rgb(43, 91, 187)
HSL	hsl(220, 63%, 45%)
HSV	hsv(220, 77%, 73%)
CMYK	cmyk(77%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(40.54, 18.46, -55.27)
CIE-LCH	lch(40.54, 58.27, 288.47°)
OKLab	oklab(49.38% -0.0217 -0.1591)
OKLCH	oklch(49.38% 0.161 262.2)
XYZ	xyz(13.7038, 11.5821, 48.5174)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BBB #BB8B2B

analogous

#2BA3BB #2B5BBB #432BBB

triadic

#2B5BBB #BB2B5B #5BBB2B

tetradic

#2B5BBB #BB2BA3 #BB8B2B #2BBB43

square

#2B5BBB #BB2BA3 #BB8B2B #2BBB43

split-complementary

#2B5BBB #BB432B #A3BB2B

monochromatic

#142B57 #204389 #2B5BBB #4D7BD6 #7FA0E2

Accessibility & contrast

On white

6.33

#2B5BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#2B5BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BBB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BBB	#FFFFFF	#000000	##FFFFFF
##2B5BBB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D67BE

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #2b5bbb;
/* rgb */ color: rgb(43, 91, 187);
/* oklch */ color: oklch(49.4% 0.161 262.2);

Tailwind

colors: {
  custom: {
    50: '#7a88d0',
    500: '#2b5bbb',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bbb;
$custom-light: #7a88d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bbb",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 220,
    "s": 62.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49375,
    "c": 0.16055,
    "h": 262.2
  },
  "luminance": 0.11584
}

Semantic roles & 50–950 ramp

primary

#2B5BBB

secondary

#CAAF78

accent

#AF42E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2B5BBB

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

Preview Lab → · Contrast checker → · Palette generator →