#2B5BB1#2B5BB1

#2B5BB1 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.6% C 0.147 H 261.0°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BB1
RGB	rgb(43, 91, 177)
HSL	hsl(219, 61%, 43%)
HSV	hsv(219, 76%, 69%)
CMYK	cmyk(75.7%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(39.86, 14.63, -50.50)
CIE-LCH	lch(39.86, 52.58, 286.15°)
OKLab	oklab(48.64% -0.023 -0.1451)
OKLCH	oklch(48.64% 0.147 261)
XYZ	xyz(12.6703, 11.1687, 43.0745)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BB1 #B1812B

analogous

#2B9EB1 #2B5BB1 #3E2BB1

triadic

#2B5BB1 #B12B5B #5BB12B

tetradic

#2B5BB1 #B12B9E #B1812B #2BB13E

square

#2B5BB1 #B12B9E #B1812B #2BB13E

split-complementary

#2B5BB1 #B13E2B #9EB12B

monochromatic

#13284F #1F4280 #2B5BB1 #4779D2 #789DDE

Accessibility & contrast

On white

6.49

#2B5BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2B5BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BB1

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BB1	#FFFFFF	#000000	##FFFFFF
##2B5BB1	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B64B4

Deuteranopia (green-blind)

#0058AF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b5bb1;
/* rgb */ color: rgb(43, 91, 177);
/* oklch */ color: oklch(48.6% 0.147 261.0);

Tailwind

colors: {
  custom: {
    50: '#7788c9',
    500: '#2b5bb1',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bb1;
$custom-light: #7788c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bb1",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 218.507,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48637,
    "c": 0.14686,
    "h": 261
  },
  "luminance": 0.1117
}

Semantic roles & 50–950 ramp

primary

#2B5BB1

secondary

#C6A872

accent

#AB44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5BB1

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

Preview Lab → · Contrast checker → · Palette generator →