#2A3391#2A3391

#2A3391 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.8% C 0.153 H 272.4°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#2A3391
RGB	rgb(42, 51, 145)
HSL	hsl(235, 55%, 37%)
HSV	hsv(235, 71%, 57%)
CMYK	cmyk(71%, 64.8%, 0%, 43.1%)
CIE-LAB	lab(26.46, 29.02, -52.98)
CIE-LCH	lch(26.46, 60.41, 298.71°)
OKLab	oklab(37.77% 0.0065 -0.153)
OKLCH	oklch(37.77% 0.153 272.4)
XYZ	xyz(7.2478, 4.9035, 27.3471)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3391 #91882A

analogous

#2A6791 #2A3391 #552A91

triadic

#2A3391 #912A33 #33912A

tetradic

#2A3391 #912A67 #91882A #2A9155

square

#2A3391 #912A67 #91882A #2A9155

split-complementary

#2A3391 #91552A #67912A

monochromatic

#0F1232 #1C2262 #2A3391 #3844C0 #636DD2

Accessibility & contrast

On white

10.60

#2A3391 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#2A3391 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3391

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3391	#FFFFFF	#000000	##FFFFFF
##2A3391	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004394

Deuteranopia (green-blind)

#003A8F

Tritanopia (blue-blind)

#004B5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a3391;
/* rgb */ color: rgb(42, 51, 145);
/* oklch */ color: oklch(37.8% 0.153 272.4);

Tailwind

colors: {
  custom: {
    50: '#726ab2',
    500: '#2a3391',
    950: '#000000',
  },
}

SCSS

$custom: #2a3391;
$custom-light: #726ab2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3391",
  "rgb": {
    "r": 42,
    "g": 51,
    "b": 145
  },
  "hsl": {
    "h": 234.757,
    "s": 55.08,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37767,
    "c": 0.1531,
    "h": 272.4
  },
  "luminance": 0.04904
}

Semantic roles & 50–950 ramp

primary

#2A3391

secondary

#B8B05F

accent

#D149DE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2A3391

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

Preview Lab → · Contrast checker → · Palette generator →