#2A3F99#2A3F99

#2A3F99 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.149 H 268.8°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#2A3F99
RGB	rgb(42, 63, 153)
HSL	hsl(229, 57%, 38%)
HSV	hsv(229, 73%, 60%)
CMYK	cmyk(72.5%, 58.8%, 0%, 40%)
CIE-LAB	lab(30.27, 23.98, -51.67)
CIE-LCH	lch(30.27, 56.96, 294.90°)
OKLab	oklab(40.8% -0.003 -0.149)
OKLCH	oklch(40.8% 0.149 268.8)
XYZ	xyz(8.4801, 6.3463, 30.9089)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3F99 #99842A

analogous

#2A7699 #2A3F99 #4D2A99

triadic

#2A3F99 #992A3F #3F992A

tetradic

#2A3F99 #992A76 #99842A #2A994D

square

#2A3F99 #992A76 #99842A #2A994D

split-complementary

#2A3F99 #994D2A #76992A

monochromatic

#101739 #1D2B69 #2A3F99 #3853C8 #687DD6

Accessibility & contrast

On white

9.25

#2A3F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2A3F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3F99

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3F99	#FFFFFF	#000000	##FFFFFF
##2A3F99	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2a3f99;
/* rgb */ color: rgb(42, 63, 153);
/* oklch */ color: oklch(40.8% 0.149 268.8);

Tailwind

colors: {
  custom: {
    50: '#7373b8',
    500: '#2a3f99',
    950: '#000000',
  },
}

SCSS

$custom: #2a3f99;
$custom-light: #7373b8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3f99",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 228.649,
    "s": 56.923,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40801,
    "c": 0.149,
    "h": 268.8
  },
  "luminance": 0.06347
}

Semantic roles & 50–950 ramp

primary

#2A3F99

secondary

#BCAB63

accent

#C348E0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2A3F99

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

Preview Lab → · Contrast checker → · Palette generator →