#2B40B6#2B40B6

#2B40B6 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.6% C 0.187 H 269.0°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#2B40B6
RGB	rgb(43, 64, 182)
HSL	hsl(231, 62%, 44%)
HSV	hsv(231, 76%, 71%)
CMYK	cmyk(76.4%, 64.8%, 0%, 28.6%)
CIE-LAB	lab(33.04, 34.25, -64.54)
CIE-LCH	lch(33.04, 73.07, 297.96°)
OKLab	oklab(43.63% -0.0032 -0.1867)
OKLCH	oklch(43.63% 0.187 269)
XYZ	xyz(11.2702, 7.5565, 45.1115)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40B6 #B6A12B

analogous

#2B86B6 #2B40B6 #5C2BB6

triadic

#2B40B6 #B62B40 #40B62B

tetradic

#2B40B6 #B62B86 #B6A12B #2BB65C

square

#2B40B6 #B62B86 #B6A12B #2BB65C

split-complementary

#2B40B6 #B65C2B #86B62B

monochromatic

#141D53 #1F2F84 #2B40B6 #4A5FD4 #7B8BE0

Accessibility & contrast

On white

8.36

#2B40B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2B40B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40B6

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40B6	#FFFFFF	#000000	##FFFFFF
##2B40B6	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2b40b6;
/* rgb */ color: rgb(43, 64, 182);
/* oklch */ color: oklch(43.6% 0.187 269.0);

Tailwind

colors: {
  custom: {
    50: '#7a74cd',
    500: '#2b40b6',
    950: '#000000',
  },
}

SCSS

$custom: #2b40b6;
$custom-light: #7a74cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40b6",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 182
  },
  "hsl": {
    "h": 230.935,
    "s": 61.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43631,
    "c": 0.18673,
    "h": 269
  },
  "luminance": 0.07558
}

Semantic roles & 50–950 ramp

primary

#2B40B6

secondary

#C8BC75

accent

#CC43E5

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2B40B6

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

Preview Lab → · Contrast checker → · Palette generator →