#2A3783#2A3783

#2A3783 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.128 H 271.5°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#2A3783
RGB	rgb(42, 55, 131)
HSL	hsl(231, 51%, 34%)
HSV	hsv(231, 68%, 51%)
CMYK	cmyk(67.9%, 58%, 0%, 48.6%)
CIE-LAB	lab(26.34, 21.09, -44.48)
CIE-LCH	lch(26.34, 49.23, 295.37°)
OKLab	oklab(37.31% 0.0032 -0.1279)
OKLCH	oklch(37.31% 0.128 271.5)
XYZ	xyz(6.4164, 4.8627, 22.0688)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3783 #83762A

analogous

#2A6483 #2A3783 #4A2A83

triadic

#2A3783 #832A37 #37832A

tetradic

#2A3783 #832A64 #83762A #2A834A

square

#2A3783 #832A64 #83762A #2A834A

split-complementary

#2A3783 #834A2A #64832A

monochromatic

#0C1026 #1B2455 #2A3783 #394AB1 #5D6DCB

Accessibility & contrast

On white

10.65

#2A3783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#2A3783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3783

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3783	#FFFFFF	#000000	##FFFFFF
##2A3783	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003A81

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2a3783;
/* rgb */ color: rgb(42, 55, 131);
/* oklch */ color: oklch(37.3% 0.128 271.5);

Tailwind

colors: {
  custom: {
    50: '#6f6da8',
    500: '#2a3783',
    950: '#000000',
  },
}

SCSS

$custom: #2a3783;
$custom-light: #6f6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3783",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 231.236,
    "s": 51.445,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37313,
    "c": 0.12799,
    "h": 271.5
  },
  "luminance": 0.04863
}

Semantic roles & 50–950 ramp

primary

#2A3783

secondary

#B1A458

accent

#C64DDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2A3783

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

Preview Lab → · Contrast checker → · Palette generator →