#2B3971#2B3971

#2B3971 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.4% C 0.098 H 270.4°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#2B3971
RGB	rgb(43, 57, 113)
HSL	hsl(228, 45%, 31%)
HSV	hsv(228, 62%, 44%)
CMYK	cmyk(61.9%, 49.6%, 0%, 55.7%)
CIE-LAB	lab(25.66, 13.11, -34.21)
CIE-LCH	lch(25.66, 36.64, 290.97°)
OKLab	oklab(36.4% 0.0006 -0.0977)
OKLCH	oklch(36.4% 0.098 270.4)
XYZ	xyz(5.4390, 4.6317, 16.2270)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3971 #71632B

analogous

#2B5C71 #2B3971 #402B71

triadic

#2B3971 #712B39 #39712B

tetradic

#2B3971 #712B5C #71632B #2B7140

square

#2B3971 #712B5C #71632B #2B7140

split-complementary

#2B3971 #71402B #5C712B

monochromatic

#090C18 #1A2345 #2B3971 #3C4F9D #576CBF

Accessibility & contrast

On white

10.90

#2B3971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2B3971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3971

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3971	#FFFFFF	#000000	##FFFFFF
##2B3971	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4073

Deuteranopia (green-blind)

#133A70

Tritanopia (blue-blind)

#00464F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b3971;
/* rgb */ color: rgb(43, 57, 113);
/* oklch */ color: oklch(36.4% 0.098 270.4);

Tailwind

colors: {
  custom: {
    50: '#6b6f9a',
    500: '#2b3971',
    950: '#000000',
  },
}

SCSS

$custom: #2b3971;
$custom-light: #6b6f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3971",
  "rgb": {
    "r": 43,
    "g": 57,
    "b": 113
  },
  "hsl": {
    "h": 228,
    "s": 44.872,
    "l": 30.588
  },
  "oklch": {
    "l": 0.36396,
    "c": 0.09768,
    "h": 270.4
  },
  "luminance": 0.04632
}

Semantic roles & 50–950 ramp

primary

#2B3971

secondary

#A39355

accent

#BB53D5

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #2B3971

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

Preview Lab → · Contrast checker → · Palette generator →