#2A309B#2A309B

#2A309B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.2% C 0.170 H 272.6°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#2A309B
RGB	rgb(42, 48, 155)
HSL	hsl(237, 57%, 39%)
HSV	hsv(237, 73%, 61%)
CMYK	cmyk(72.9%, 69%, 0%, 39.2%)
CIE-LAB	lab(26.65, 34.59, -58.80)
CIE-LCH	lch(26.65, 68.22, 300.47°)
OKLab	oklab(38.19% 0.0077 -0.17)
OKLCH	oklch(38.19% 0.17 272.6)
XYZ	xyz(7.9262, 4.9719, 31.5459)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309B #9B952A

analogous

#2A689B #2A309B #5C2A9B

triadic

#2A309B #9B2A30 #309B2A

tetradic

#2A309B #9B2A68 #9B952A #2A9B5C

square

#2A309B #9B2A68 #9B952A #2A9B5C

split-complementary

#2A309B #9B5C2A #689B2A

monochromatic

#10123B #1D216B #2A309B #3941C9 #696FD6

Accessibility & contrast

On white

10.53

#2A309B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2A309B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309B

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309B	#FFFFFF	#000000	##FFFFFF
##2A309B	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a309b;
/* rgb */ color: rgb(42, 48, 155);
/* oklch */ color: oklch(38.2% 0.170 272.6);

Tailwind

colors: {
  custom: {
    50: '#7569ba',
    500: '#2a309b',
    950: '#000000',
  },
}

SCSS

$custom: #2a309b;
$custom-light: #7569ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309b",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 155
  },
  "hsl": {
    "h": 236.814,
    "s": 57.36,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38194,
    "c": 0.17018,
    "h": 272.6
  },
  "luminance": 0.04973
}

Semantic roles & 50–950 ramp

primary

#2A309B

secondary

#BDB864

accent

#D847E1

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309B

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

Preview Lab → · Contrast checker → · Palette generator →