#2A309F#2A309F

#2A309F is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.6% C 0.175 H 272.4°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#2A309F
RGB	rgb(42, 48, 159)
HSL	hsl(237, 58%, 39%)
HSV	hsv(237, 74%, 62%)
CMYK	cmyk(73.6%, 69.8%, 0%, 37.6%)
CIE-LAB	lab(27.04, 36.02, -60.60)
CIE-LCH	lch(27.04, 70.49, 300.72°)
OKLab	oklab(38.59% 0.0073 -0.1753)
OKLCH	oklch(38.59% 0.175 272.4)
XYZ	xyz(8.2677, 5.1085, 33.3445)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309F #9F992A

analogous

#2A6B9F #2A309F #5F2A9F

triadic

#2A309F #9F2A30 #309F2A

tetradic

#2A309F #9F2A6B #9F992A #2A9F5F

square

#2A309F #9F2A6B #9F992A #2A9F5F

split-complementary

#2A309F #9F5F2A #6B9F2A

monochromatic

#10133E #1D216F #2A309F #3B42CB #6B71D8

Accessibility & contrast

On white

10.39

#2A309F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2A309F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309F

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309F	#FFFFFF	#000000	##FFFFFF
##2A309F	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A2

Deuteranopia (green-blind)

#003A9D

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2a309f;
/* rgb */ color: rgb(42, 48, 159);
/* oklch */ color: oklch(38.6% 0.175 272.4);

Tailwind

colors: {
  custom: {
    50: '#7669bc',
    500: '#2a309f',
    950: '#000000',
  },
}

SCSS

$custom: #2a309f;
$custom-light: #7669bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309f",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 159
  },
  "hsl": {
    "h": 236.923,
    "s": 58.209,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38592,
    "c": 0.17541,
    "h": 272.4
  },
  "luminance": 0.05109
}

Semantic roles & 50–950 ramp

primary

#2A309F

secondary

#BFBA66

accent

#D946E1

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309F

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

Preview Lab → · Contrast checker → · Palette generator →