#2B3AA5#2B3AA5

#2B3AA5 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.171 H 270.5°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AA5
RGB	rgb(43, 58, 165)
HSL	hsl(233, 59%, 41%)
HSV	hsv(233, 74%, 65%)
CMYK	cmyk(73.9%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(30.05, 31.91, -59.30)
CIE-LCH	lch(30.05, 67.34, 298.28°)
OKLab	oklab(40.97% 0.0015 -0.1714)
OKLCH	oklch(40.97% 0.171 270.5)
XYZ	xyz(9.2985, 6.2553, 36.3074)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AA5 #A5962B

analogous

#2B77A5 #2B3AA5 #592BA5

triadic

#2B3AA5 #A52B3A #3AA52B

tetradic

#2B3AA5 #A52B77 #A5962B #2BA559

square

#2B3AA5 #A52B77 #A5962B #2BA559

split-complementary

#2B3AA5 #A5592B #77A52B

monochromatic

#121844 #1E2974 #2B3AA5 #4051CD #717DDA

Accessibility & contrast

On white

9.33

#2B3AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2B3AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AA5

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AA5	#FFFFFF	#000000	##FFFFFF
##2B3AA5	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0041A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b3aa5;
/* rgb */ color: rgb(43, 58, 165);
/* oklch */ color: oklch(41.0% 0.171 270.5);

Tailwind

colors: {
  custom: {
    50: '#7770c1',
    500: '#2b3aa5',
    950: '#000000',
  },
}

SCSS

$custom: #2b3aa5;
$custom-light: #7770c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3aa5",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 232.623,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40967,
    "c": 0.17139,
    "h": 270.5
  },
  "luminance": 0.06256
}

Semantic roles & 50–950 ramp

primary

#2B3AA5

secondary

#C1B66B

accent

#CF46E2

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #2B3AA5

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

Preview Lab → · Contrast checker → · Palette generator →