#2A309C#2A309C

#2A309C is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.3% C 0.171 H 272.5°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#2A309C
RGB	rgb(42, 48, 156)
HSL	hsl(237, 58%, 39%)
HSV	hsv(237, 73%, 61%)
CMYK	cmyk(73.1%, 69.2%, 0%, 38.8%)
CIE-LAB	lab(26.75, 34.95, -59.25)
CIE-LCH	lch(26.75, 68.79, 300.53°)
OKLab	oklab(38.29% 0.0076 -0.1713)
OKLCH	oklch(38.29% 0.171 272.5)
XYZ	xyz(8.0105, 5.0056, 31.9901)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309C #9C962A

analogous

#2A699C #2A309C #5D2A9C

triadic

#2A309C #9C2A30 #309C2A

tetradic

#2A309C #9C2A69 #9C962A #2A9C5D

square

#2A309C #9C2A69 #9C962A #2A9C5D

split-complementary

#2A309C #9C5D2A #699C2A

monochromatic

#10123C #1D216C #2A309C #3941CA #6A6FD7

Accessibility & contrast

On white

10.49

#2A309C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2A309C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309C

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309C	#FFFFFF	#000000	##FFFFFF
##2A309C	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459F

Deuteranopia (green-blind)

#003A9A

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a309c;
/* rgb */ color: rgb(42, 48, 156);
/* oklch */ color: oklch(38.3% 0.171 272.5);

Tailwind

colors: {
  custom: {
    50: '#7569ba',
    500: '#2a309c',
    950: '#000000',
  },
}

SCSS

$custom: #2a309c;
$custom-light: #7569ba;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309c",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 156
  },
  "hsl": {
    "h": 236.842,
    "s": 57.576,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38293,
    "c": 0.17149,
    "h": 272.5
  },
  "luminance": 0.05006
}

Semantic roles & 50–950 ramp

primary

#2A309C

secondary

#BDB965

accent

#D947E1

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309C

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

Preview Lab → · Contrast checker → · Palette generator →