#2B5BAB#2B5BAB

#2B5BAB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.139 H 260.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BAB
RGB	rgb(43, 91, 171)
HSL	hsl(218, 60%, 42%)
HSV	hsv(218, 75%, 67%)
CMYK	cmyk(74.9%, 46.8%, 0%, 32.9%)
CIE-LAB	lab(39.47, 12.33, -47.59)
CIE-LCH	lch(39.47, 49.17, 284.52°)
OKLab	oklab(48.21% -0.024 -0.1365)
OKLCH	oklch(48.21% 0.139 260)
XYZ	xyz(12.0854, 10.9347, 39.9939)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BAB #AB7B2B

analogous

#2B9BAB #2B5BAB #3B2BAB

triadic

#2B5BAB #AB2B5B #5BAB2B

tetradic

#2B5BAB #AB2B9B #AB7B2B #2BAB3B

square

#2B5BAB #AB2B9B #AB7B2B #2BAB3B

split-complementary

#2B5BAB #AB3B2B #9BAB2B

monochromatic

#122749 #1F417A #2B5BAB #4378D0 #749BDC

Accessibility & contrast

On white

6.59

#2B5BAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#2B5BAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BAB

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BAB	#FFFFFF	#000000	##FFFFFF
##2B5BAB	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3163AE

Deuteranopia (green-blind)

#1257A9

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2b5bab;
/* rgb */ color: rgb(43, 91, 171);
/* oklch */ color: oklch(48.2% 0.139 260.0);

Tailwind

colors: {
  custom: {
    50: '#7688c4',
    500: '#2b5bab',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bab;
$custom-light: #7688c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bab",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 171
  },
  "hsl": {
    "h": 217.5,
    "s": 59.813,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48209,
    "c": 0.13858,
    "h": 260
  },
  "luminance": 0.10936
}

Semantic roles & 50–950 ramp

primary

#2B5BAB

secondary

#C4A46E

accent

#A845E3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5BAB

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

Preview Lab → · Contrast checker → · Palette generator →