#2D3581#2D3581

#2D3581 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.127 H 273.9°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#2D3581
RGB	rgb(45, 53, 129)
HSL	hsl(234, 48%, 34%)
HSV	hsv(234, 65%, 51%)
CMYK	cmyk(65.1%, 58.9%, 0%, 49.4%)
CIE-LAB	lab(25.83, 22.23, -44.05)
CIE-LCH	lch(25.83, 49.34, 296.78°)
OKLab	oklab(36.93% 0.0086 -0.1266)
OKLCH	oklch(36.93% 0.127 273.9)
XYZ	xyz(6.3164, 4.6885, 21.3367)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D3581 #81792D

analogous

#2D5F81 #2D3581 #4F2D81

triadic

#2D3581 #812D35 #35812D

tetradic

#2D3581 #812D5F #81792D #2D814F

square

#2D3581 #812D5F #81792D #2D814F

split-complementary

#2D3581 #814F2D #5F812D

monochromatic

#0D1026 #1D2254 #2D3581 #3D48AE #616AC8

Accessibility & contrast

On white

10.84

#2D3581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2D3581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D3581

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D3581	#FFFFFF	#000000	##FFFFFF
##2D3581	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2d3581;
/* rgb */ color: rgb(45, 53, 129);
/* oklch */ color: oklch(36.9% 0.127 273.9);

Tailwind

colors: {
  custom: {
    50: '#706ca6',
    500: '#2d3581',
    950: '#000000',
  },
}

SCSS

$custom: #2d3581;
$custom-light: #706ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#2d3581",
  "rgb": {
    "r": 45,
    "g": 53,
    "b": 129
  },
  "hsl": {
    "h": 234.286,
    "s": 48.276,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36932,
    "c": 0.12691,
    "h": 273.9
  },
  "luminance": 0.04689
}

Semantic roles & 50–950 ramp

primary

#2D3581

secondary

#AEA65C

accent

#CB50D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2D3581

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

Preview Lab → · Contrast checker → · Palette generator →