#2B4DA3#2B4DA3

#2B4DA3 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.145 H 264.8°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#2B4DA3
RGB	rgb(43, 77, 163)
HSL	hsl(223, 58%, 40%)
HSV	hsv(223, 74%, 64%)
CMYK	cmyk(73.6%, 52.8%, 0%, 36.1%)
CIE-LAB	lab(34.93, 18.52, -50.14)
CIE-LCH	lch(34.93, 53.46, 290.28°)
OKLab	oklab(44.57% -0.013 -0.1442)
OKLCH	oklch(44.57% 0.145 264.8)
XYZ	xyz(10.2587, 8.4646, 35.7364)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4DA3 #A3812B

analogous

#2B89A3 #2B4DA3 #452BA3

triadic

#2B4DA3 #A32B4D #4DA32B

tetradic

#2B4DA3 #A32B89 #A3812B #2BA345

square

#2B4DA3 #A32B89 #A3812B #2BA345

split-complementary

#2B4DA3 #A3452B #89A32B

monochromatic

#111F42 #1E3673 #2B4DA3 #3F67CC #6F8DD9

Accessibility & contrast

On white

7.80

#2B4DA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#2B4DA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4DA3

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4DA3	#FFFFFF	#000000	##FFFFFF
##2B4DA3	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1458A6

Deuteranopia (green-blind)

#004DA1

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2b4da3;
/* rgb */ color: rgb(43, 77, 163);
/* oklch */ color: oklch(44.6% 0.145 264.8);

Tailwind

colors: {
  custom: {
    50: '#757ebf',
    500: '#2b4da3',
    950: '#000000',
  },
}

SCSS

$custom: #2b4da3;
$custom-light: #757ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4da3",
  "rgb": {
    "r": 43,
    "g": 77,
    "b": 163
  },
  "hsl": {
    "h": 223,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44566,
    "c": 0.14483,
    "h": 264.8
  },
  "luminance": 0.08466
}

Semantic roles & 50–950 ramp

primary

#2B4DA3

secondary

#C0A86A

accent

#B646E1

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2B4DA3

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

Preview Lab → · Contrast checker → · Palette generator →