#2B4ED3#2B4ED3

#2B4ED3 is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 48.8% C 0.208 H 266.7°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#2B4ED3
RGB	rgb(43, 78, 211)
HSL	hsl(228, 66%, 50%)
HSV	hsv(228, 80%, 83%)
CMYK	cmyk(79.6%, 63%, 0%, 17.3%)
CIE-LAB	lab(39.01, 35.92, -71.69)
CIE-LCH	lch(39.01, 80.18, 296.61°)
OKLab	oklab(48.81% -0.012 -0.2075)
OKLCH	oklch(48.81% 0.208 266.7)
XYZ	xyz(15.4744, 10.6637, 62.8581)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4ED3 #D3B02B

analogous

#2BA2D3 #2B4ED3 #5C2BD3

triadic

#2B4ED3 #D32B4E #4ED32B

tetradic

#2B4ED3 #D32BA2 #D3B02B #2BD35C

square

#2B4ED3 #D32BA2 #D3B02B #2BD35C

split-complementary

#2B4ED3 #D35C2B #A2D32B

monochromatic

#16286D #213BA0 #2B4ED3 #5D78DE #90A2E8

Accessibility & contrast

On white

6.70

#2B4ED3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#2B4ED3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B4ED3

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4ED3	#FFFFFF	#000000	##FFFFFF
##2B4ED3	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D7

Deuteranopia (green-blind)

#0054D0

Tritanopia (blue-blind)

#007189

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2b4ed3;
/* rgb */ color: rgb(43, 78, 211);
/* oklch */ color: oklch(48.8% 0.208 266.7);

Tailwind

colors: {
  custom: {
    50: '#807fe2',
    500: '#2b4ed3',
    950: '#000000',
  },
}

SCSS

$custom: #2b4ed3;
$custom-light: #807fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4ed3",
  "rgb": {
    "r": 43,
    "g": 78,
    "b": 211
  },
  "hsl": {
    "h": 227.5,
    "s": 66.142,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48806,
    "c": 0.20784,
    "h": 266.7
  },
  "luminance": 0.10666
}

Semantic roles & 50–950 ramp

primary

#2B4ED3

secondary

#D3C387

accent

#C63FE9

background

#F8F7FE

surface

#F0EEFC

border

#CBC9D5

text

#0C0A15

muted

#7D7C84

Preview Lab

Preview with #2B4ED3

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

Preview Lab → · Contrast checker → · Palette generator →