#2A3183#2A3183

#2A3183 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.1% C 0.136 H 273.7°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#2A3183
RGB	rgb(42, 49, 131)
HSL	hsl(235, 51%, 34%)
HSV	hsv(235, 68%, 51%)
CMYK	cmyk(67.9%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(24.72, 25.18, -47.11)
CIE-LCH	lch(24.72, 53.42, 298.12°)
OKLab	oklab(36.11% 0.0087 -0.1357)
OKLCH	oklch(36.11% 0.136 273.7)
XYZ	xyz(6.1485, 4.3270, 21.9795)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3183 #837C2A

analogous

#2A5E83 #2A3183 #502A83

triadic

#2A3183 #832A31 #31832A

tetradic

#2A3183 #832A5E #837C2A #2A8350

square

#2A3183 #832A5E #837C2A #2A8350

split-complementary

#2A3183 #83502A #5E832A

monochromatic

#0C0E26 #1B2055 #2A3183 #3942B1 #5D65CB

Accessibility & contrast

On white

11.26

#2A3183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2A3183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3183

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3183	#FFFFFF	#000000	##FFFFFF
##2A3183	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F86

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2a3183;
/* rgb */ color: rgb(42, 49, 131);
/* oklch */ color: oklch(36.1% 0.136 273.7);

Tailwind

colors: {
  custom: {
    50: '#6f69a8',
    500: '#2a3183',
    950: '#000000',
  },
}

SCSS

$custom: #2a3183;
$custom-light: #6f69a8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3183",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 235.281,
    "s": 51.445,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36112,
    "c": 0.13602,
    "h": 273.7
  },
  "luminance": 0.04328
}

Semantic roles & 50–950 ramp

primary

#2A3183

secondary

#B1AA58

accent

#D04DDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2A3183

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

Preview Lab → · Contrast checker → · Palette generator →