#2B4DB2#2B4DB2

#2B4DB2 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.8% C 0.166 H 265.9°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#2B4DB2
RGB	rgb(43, 77, 178)
HSL	hsl(225, 61%, 43%)
HSV	hsv(225, 76%, 70%)
CMYK	cmyk(75.8%, 56.7%, 0%, 30.2%)
CIE-LAB	lab(36.05, 24.25, -57.26)
CIE-LCH	lch(36.05, 62.19, 292.95°)
OKLab	oklab(45.76% -0.0118 -0.1652)
OKLCH	oklch(45.76% 0.166 265.9)
XYZ	xyz(11.6832, 9.0344, 43.2389)
Luminance	0.0904 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4DB2 #B2902B

analogous

#2B90B2 #2B4DB2 #4C2BB2

triadic

#2B4DB2 #B22B4D #4DB22B

tetradic

#2B4DB2 #B22B90 #B2902B #2BB24C

square

#2B4DB2 #B22B90 #B2902B #2BB24C

split-complementary

#2B4DB2 #B24C2B #90B22B

monochromatic

#13224F #1F3881 #2B4DB2 #486BD3 #7992DF

Accessibility & contrast

On white

7.48

#2B4DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2B4DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4DB2

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4DB2	#FFFFFF	#000000	##FFFFFF
##2B4DB2	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB5

Deuteranopia (green-blind)

#004FB0

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2b4db2;
/* rgb */ color: rgb(43, 77, 178);
/* oklch */ color: oklch(45.8% 0.166 265.9);

Tailwind

colors: {
  custom: {
    50: '#787eca',
    500: '#2b4db2',
    950: '#000000',
  },
}

SCSS

$custom: #2b4db2;
$custom-light: #787eca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4db2",
  "rgb": {
    "r": 43,
    "g": 77,
    "b": 178
  },
  "hsl": {
    "h": 224.889,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45764,
    "c": 0.16561,
    "h": 265.9
  },
  "luminance": 0.09036
}

Semantic roles & 50–950 ramp

primary

#2B4DB2

secondary

#C7B172

accent

#BC44E4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2B4DB2

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

Preview Lab → · Contrast checker → · Palette generator →