#2B3AB8#2B3AB8

#2B3AB8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.196 H 270.0°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AB8
RGB	rgb(43, 58, 184)
HSL	hsl(234, 62%, 45%)
HSV	hsv(234, 77%, 72%)
CMYK	cmyk(76.6%, 68.5%, 0%, 27.8%)
CIE-LAB	lab(31.81, 38.77, -67.76)
CIE-LCH	lch(31.81, 78.06, 299.78°)
OKLab	oklab(42.79% 0.0001 -0.1961)
OKLCH	oklch(42.79% 0.196 270)
XYZ	xyz(11.1581, 6.9992, 46.1010)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AB8 #B8A92B

analogous

#2B81B8 #2B3AB8 #632BB8

triadic

#2B3AB8 #B82B3A #3AB82B

tetradic

#2B3AB8 #B82B81 #B8A92B #2BB863

square

#2B3AB8 #B82B81 #B8A92B #2BB863

split-complementary

#2B3AB8 #B8632B #81B82B

monochromatic

#141B55 #1F2A86 #2B3AB8 #4B5AD5 #7D87E1

Accessibility & contrast

On white

8.75

#2B3AB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2B3AB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AB8

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AB8	#FFFFFF	#000000	##FFFFFF
##2B3AB8	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0044B6

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3ab8;
/* rgb */ color: rgb(43, 58, 184);
/* oklch */ color: oklch(42.8% 0.196 270.0);

Tailwind

colors: {
  custom: {
    50: '#7b70ce',
    500: '#2b3ab8',
    950: '#000000',
  },
}

SCSS

$custom: #2b3ab8;
$custom-light: #7b70ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3ab8",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 184
  },
  "hsl": {
    "h": 233.617,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42785,
    "c": 0.19613,
    "h": 270
  },
  "luminance": 0.07
}

Semantic roles & 50–950 ramp

primary

#2B3AB8

secondary

#C9C076

accent

#D443E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B3AB8

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

Preview Lab → · Contrast checker → · Palette generator →