#2A3791#2A3791

#2A3791 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.148 H 271.3°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#2A3791
RGB	rgb(42, 55, 145)
HSL	hsl(232, 55%, 37%)
HSV	hsv(232, 71%, 57%)
CMYK	cmyk(71%, 62.1%, 0%, 43.1%)
CIE-LAB	lab(27.49, 26.35, -51.30)
CIE-LCH	lch(27.49, 57.68, 297.19°)
OKLab	oklab(38.52% 0.0034 -0.148)
OKLCH	oklch(38.52% 0.148 271.3)
XYZ	xyz(7.4301, 5.2682, 27.4079)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3791 #91842A

analogous

#2A6B91 #2A3791 #512A91

triadic

#2A3791 #912A37 #37912A

tetradic

#2A3791 #912A6B #91842A #2A9151

square

#2A3791 #912A6B #91842A #2A9151

split-complementary

#2A3791 #91512A #6B912A

monochromatic

#0F1332 #1C2562 #2A3791 #3849C0 #6371D2

Accessibility & contrast

On white

10.22

#2A3791 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2A3791 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3791

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3791	#FFFFFF	#000000	##FFFFFF
##2A3791	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004694

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#004E5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a3791;
/* rgb */ color: rgb(42, 55, 145);
/* oklch */ color: oklch(38.5% 0.148 271.3);

Tailwind

colors: {
  custom: {
    50: '#726db2',
    500: '#2a3791',
    950: '#000000',
  },
}

SCSS

$custom: #2a3791;
$custom-light: #726db2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3791",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 145
  },
  "hsl": {
    "h": 232.427,
    "s": 55.08,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38524,
    "c": 0.14804,
    "h": 271.3
  },
  "luminance": 0.05269
}

Semantic roles & 50–950 ramp

primary

#2A3791

secondary

#B8AD5F

accent

#CC49DE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2A3791

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

Preview Lab → · Contrast checker → · Palette generator →