#2A3A91#2A3A91

#2A3A91 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.144 H 270.4°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#2A3A91
RGB	rgb(42, 58, 145)
HSL	hsl(231, 55%, 37%)
HSV	hsv(231, 71%, 57%)
CMYK	cmyk(71%, 60%, 0%, 43.1%)
CIE-LAB	lab(28.28, 24.33, -50.01)
CIE-LCH	lch(28.28, 55.62, 295.94°)
OKLab	oklab(39.11% 0.0009 -0.1442)
OKLCH	oklch(39.11% 0.144 270.4)
XYZ	xyz(7.5770, 5.5619, 27.4568)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3A91 #91812A

analogous

#2A6E91 #2A3A91 #4E2A91

triadic

#2A3A91 #912A3A #3A912A

tetradic

#2A3A91 #912A6E #91812A #2A914E

square

#2A3A91 #912A6E #91812A #2A914E

split-complementary

#2A3A91 #914E2A #6E912A

monochromatic

#0F1432 #1C2762 #2A3A91 #384DC0 #6375D2

Accessibility & contrast

On white

9.94

#2A3A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2A3A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3A91

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3A91	#FFFFFF	#000000	##FFFFFF
##2A3A91	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004894

Deuteranopia (green-blind)

#003E8F

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2a3a91;
/* rgb */ color: rgb(42, 58, 145);
/* oklch */ color: oklch(39.1% 0.144 270.4);

Tailwind

colors: {
  custom: {
    50: '#7270b2',
    500: '#2a3a91',
    950: '#000000',
  },
}

SCSS

$custom: #2a3a91;
$custom-light: #7270b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3a91",
  "rgb": {
    "r": 42,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 230.68,
    "s": 55.08,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39113,
    "c": 0.14417,
    "h": 270.4
  },
  "luminance": 0.05563
}

Semantic roles & 50–950 ramp

primary

#2A3A91

secondary

#B8AA5F

accent

#C749DE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #2A3A91

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

Preview Lab → · Contrast checker → · Palette generator →