#2D3591#2D3591

#2D3591 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.150 H 273.2°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#2D3591
RGB	rgb(45, 53, 145)
HSL	hsl(235, 53%, 37%)
HSV	hsv(235, 69%, 57%)
CMYK	cmyk(69%, 63.4%, 0%, 43.1%)
CIE-LAB	lab(27.15, 28.12, -51.84)
CIE-LCH	lch(27.15, 58.98, 298.48°)
OKLab	oklab(38.33% 0.0084 -0.1495)
OKLCH	oklch(38.33% 0.15 273.2)
XYZ	xyz(7.4644, 5.1477, 27.3828)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D3591 #91892D

analogous

#2D6791 #2D3591 #572D91

triadic

#2D3591 #912D35 #35912D

tetradic

#2D3591 #912D67 #91892D #2D9157

square

#2D3591 #912D67 #91892D #2D9157

split-complementary

#2D3591 #91572D #67912D

monochromatic

#101334 #1F2462 #2D3591 #3B46C0 #6871D0

Accessibility & contrast

On white

10.35

#2D3591 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2D3591 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D3591

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D3591	#FFFFFF	#000000	##FFFFFF
##2D3591	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004594

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#004C5E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2d3591;
/* rgb */ color: rgb(45, 53, 145);
/* oklch */ color: oklch(38.3% 0.150 273.2);

Tailwind

colors: {
  custom: {
    50: '#736cb2',
    500: '#2d3591',
    950: '#000000',
  },
}

SCSS

$custom: #2d3591;
$custom-light: #736cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#2d3591",
  "rgb": {
    "r": 45,
    "g": 53,
    "b": 145
  },
  "hsl": {
    "h": 235.2,
    "s": 52.632,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38326,
    "c": 0.14975,
    "h": 273.2
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#2D3591

secondary

#B7B063

accent

#D14CDC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2D3591

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

Preview Lab → · Contrast checker → · Palette generator →