#2A309A#2A309A

#2A309A is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.1% C 0.169 H 272.7°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#2A309A
RGB	rgb(42, 48, 154)
HSL	hsl(237, 57%, 38%)
HSV	hsv(237, 73%, 60%)
CMYK	cmyk(72.7%, 68.8%, 0%, 39.6%)
CIE-LAB	lab(26.56, 34.23, -58.34)
CIE-LCH	lch(26.56, 67.65, 300.40°)
OKLab	oklab(38.1% 0.0078 -0.1687)
OKLCH	oklch(38.1% 0.169 272.7)
XYZ	xyz(7.8426, 4.9385, 31.1055)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309A #9A942A

analogous

#2A689A #2A309A #5C2A9A

triadic

#2A309A #9A2A30 #309A2A

tetradic

#2A309A #9A2A68 #9A942A #2A9A5C

square

#2A309A #9A2A68 #9A942A #2A9A5C

split-complementary

#2A309A #9A5C2A #689A2A

monochromatic

#10123A #1D216A #2A309A #3840C9 #686ED6

Accessibility & contrast

On white

10.56

#2A309A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2A309A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309A

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309A	#FFFFFF	#000000	##FFFFFF
##2A309A	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449D

Deuteranopia (green-blind)

#003A98

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a309a;
/* rgb */ color: rgb(42, 48, 154);
/* oklch */ color: oklch(38.1% 0.169 272.7);

Tailwind

colors: {
  custom: {
    50: '#7569b9',
    500: '#2a309a',
    950: '#000000',
  },
}

SCSS

$custom: #2a309a;
$custom-light: #7569b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309a",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 154
  },
  "hsl": {
    "h": 236.786,
    "s": 57.143,
    "l": 38.431
  },
  "oklch": {
    "l": 0.38096,
    "c": 0.16885,
    "h": 272.7
  },
  "luminance": 0.04939
}

Semantic roles & 50–950 ramp

primary

#2A309A

secondary

#BCB863

accent

#D847E0

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309A

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

Preview Lab → · Contrast checker → · Palette generator →