#2B4DB0#2B4DB0

#2B4DB0 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.163 H 265.8°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#2B4DB0
RGB	rgb(43, 77, 176)
HSL	hsl(225, 61%, 43%)
HSV	hsv(225, 76%, 69%)
CMYK	cmyk(75.6%, 56.2%, 0%, 31%)
CIE-LAB	lab(35.90, 23.49, -56.33)
CIE-LCH	lch(35.90, 61.03, 292.64°)
OKLab	oklab(45.6% -0.012 -0.1624)
OKLCH	oklch(45.6% 0.163 265.8)
XYZ	xyz(11.4839, 8.9547, 42.1891)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4DB0 #B08E2B

analogous

#2B8FB0 #2B4DB0 #4C2BB0

triadic

#2B4DB0 #B02B4D #4DB02B

tetradic

#2B4DB0 #B02B8F #B08E2B #2BB04C

square

#2B4DB0 #B02B8F #B08E2B #2BB04C

split-complementary

#2B4DB0 #B04C2B #8FB02B

monochromatic

#13224E #1F377F #2B4DB0 #466AD2 #7892DE

Accessibility & contrast

On white

7.52

#2B4DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#2B4DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4DB0

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4DB0	#FFFFFF	#000000	##FFFFFF
##2B4DB0	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB3

Deuteranopia (green-blind)

#004FAE

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2b4db0;
/* rgb */ color: rgb(43, 77, 176);
/* oklch */ color: oklch(45.6% 0.163 265.8);

Tailwind

colors: {
  custom: {
    50: '#787ec8',
    500: '#2b4db0',
    950: '#000000',
  },
}

SCSS

$custom: #2b4db0;
$custom-light: #787ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4db0",
  "rgb": {
    "r": 43,
    "g": 77,
    "b": 176
  },
  "hsl": {
    "h": 224.662,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.456,
    "c": 0.16288,
    "h": 265.8
  },
  "luminance": 0.08956
}

Semantic roles & 50–950 ramp

primary

#2B4DB0

secondary

#C6B071

accent

#BB44E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2B4DB0

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

Preview Lab → · Contrast checker → · Palette generator →