#2B3F90#2B3F90

#2B3F90 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.1% C 0.136 H 269.0°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F90
RGB	rgb(43, 63, 144)
HSL	hsl(228, 54%, 37%)
HSV	hsv(228, 70%, 56%)
CMYK	cmyk(70.1%, 56.3%, 0%, 43.5%)
CIE-LAB	lab(29.62, 20.71, -47.22)
CIE-LCH	lch(29.62, 51.56, 293.68°)
OKLab	oklab(40.1% -0.0024 -0.1359)
OKLCH	oklch(40.1% 0.136 269)
XYZ	xyz(7.8061, 6.0815, 27.1426)
Luminance	0.0608 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F90 #907C2B

analogous

#2B7290 #2B3F90 #4A2B90

triadic

#2B3F90 #902B3F #3F902B

tetradic

#2B3F90 #902B72 #907C2B #2B904A

square

#2B3F90 #902B72 #907C2B #2B904A

split-complementary

#2B3F90 #904A2B #72902B

monochromatic

#0F1632 #1D2A61 #2B3F90 #3954BF #657AD1

Accessibility & contrast

On white

9.47

#2B3F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#2B3F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F90

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F90	#FFFFFF	#000000	##FFFFFF
##2B3F90	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B93

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b3f90;
/* rgb */ color: rgb(43, 63, 144);
/* oklch */ color: oklch(40.1% 0.136 269.0);

Tailwind

colors: {
  custom: {
    50: '#7173b1',
    500: '#2b3f90',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f90;
$custom-light: #7173b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f90",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 144
  },
  "hsl": {
    "h": 228.119,
    "s": 54.011,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40104,
    "c": 0.13589,
    "h": 269
  },
  "luminance": 0.06082
}

Semantic roles & 50–950 ramp

primary

#2B3F90

secondary

#B7A660

accent

#C04ADD

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2B3F90

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

Preview Lab → · Contrast checker → · Palette generator →