#2B40A5#2B40A5

#2B40A5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.1% C 0.164 H 269.1°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#2B40A5
RGB	rgb(43, 64, 165)
HSL	hsl(230, 59%, 41%)
HSV	hsv(230, 74%, 65%)
CMYK	cmyk(73.9%, 61.2%, 0%, 35.3%)
CIE-LAB	lab(31.57, 27.97, -56.81)
CIE-LCH	lch(31.57, 63.32, 296.21°)
OKLab	oklab(42.09% -0.0027 -0.164)
OKLCH	oklch(42.09% 0.164 269.1)
XYZ	xyz(9.6188, 6.8960, 36.4141)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40A5 #A5902B

analogous

#2B7DA5 #2B40A5 #532BA5

triadic

#2B40A5 #A52B40 #40A52B

tetradic

#2B40A5 #A52B7D #A5902B #2BA553

square

#2B40A5 #A52B7D #A5902B #2BA553

split-complementary

#2B40A5 #A5532B #7DA52B

monochromatic

#121A44 #1E2D74 #2B40A5 #4058CD #7183DA

Accessibility & contrast

On white

8.83

#2B40A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2B40A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40A5

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40A5	#FFFFFF	#000000	##FFFFFF
##2B40A5	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0045A3

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b40a5;
/* rgb */ color: rgb(43, 64, 165);
/* oklch */ color: oklch(42.1% 0.164 269.1);

Tailwind

colors: {
  custom: {
    50: '#7674c1',
    500: '#2b40a5',
    950: '#000000',
  },
}

SCSS

$custom: #2b40a5;
$custom-light: #7674c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40a5",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 165
  },
  "hsl": {
    "h": 229.672,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.42089,
    "c": 0.16405,
    "h": 269.1
  },
  "luminance": 0.06897
}

Semantic roles & 50–950 ramp

primary

#2B40A5

secondary

#C1B26B

accent

#C746E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2B40A5

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

Preview Lab → · Contrast checker → · Palette generator →