#2A309E#2A309E

#2A309E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.174 H 272.4°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#2A309E
RGB	rgb(42, 48, 158)
HSL	hsl(237, 58%, 39%)
HSV	hsv(237, 73%, 62%)
CMYK	cmyk(73.4%, 69.6%, 0%, 38%)
CIE-LAB	lab(26.94, 35.66, -60.15)
CIE-LCH	lch(26.94, 69.93, 300.66°)
OKLab	oklab(38.49% 0.0074 -0.1739)
OKLCH	oklch(38.49% 0.174 272.4)
XYZ	xyz(8.1813, 5.0739, 32.8893)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309E #9E982A

analogous

#2A6A9E #2A309E #5E2A9E

triadic

#2A309E #9E2A30 #309E2A

tetradic

#2A309E #9E2A6A #9E982A #2A9E5E

square

#2A309E #9E2A6A #9E982A #2A9E5E

split-complementary

#2A309E #9E5E2A #6A9E2A

monochromatic

#10133D #1D216E #2A309E #3A42CB #6B70D8

Accessibility & contrast

On white

10.42

#2A309E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2A309E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309E

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309E	#FFFFFF	#000000	##FFFFFF
##2A309E	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A1

Deuteranopia (green-blind)

#003A9C

Tritanopia (blue-blind)

#004E63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2a309e;
/* rgb */ color: rgb(42, 48, 158);
/* oklch */ color: oklch(38.5% 0.174 272.4);

Tailwind

colors: {
  custom: {
    50: '#7669bc',
    500: '#2a309e',
    950: '#000000',
  },
}

SCSS

$custom: #2a309e;
$custom-light: #7669bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309e",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 158
  },
  "hsl": {
    "h": 236.897,
    "s": 58,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38492,
    "c": 0.17411,
    "h": 272.4
  },
  "luminance": 0.05075
}

Semantic roles & 50–950 ramp

primary

#2A309E

secondary

#BEBA66

accent

#D947E1

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309E

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

Preview Lab → · Contrast checker → · Palette generator →