#2A309D#2A309D

#2A309D is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.4% C 0.173 H 272.5°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#2A309D
RGB	rgb(42, 48, 157)
HSL	hsl(237, 58%, 39%)
HSV	hsv(237, 73%, 62%)
CMYK	cmyk(73.2%, 69.4%, 0%, 38.4%)
CIE-LAB	lab(26.85, 35.30, -59.70)
CIE-LCH	lch(26.85, 69.36, 300.60°)
OKLab	oklab(38.39% 0.0075 -0.1726)
OKLCH	oklch(38.39% 0.173 272.5)
XYZ	xyz(8.0956, 5.0397, 32.4379)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A309D #9D972A

analogous

#2A6A9D #2A309D #5E2A9D

triadic

#2A309D #9D2A30 #309D2A

tetradic

#2A309D #9D2A6A #9D972A #2A9D5E

square

#2A309D #9D2A6A #9D972A #2A9D5E

split-complementary

#2A309D #9D5E2A #6A9D2A

monochromatic

#10123C #1D216D #2A309D #3A41CA #6A70D7

Accessibility & contrast

On white

10.46

#2A309D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#2A309D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A309D

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A309D	#FFFFFF	#000000	##FFFFFF
##2A309D	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A0

Deuteranopia (green-blind)

#003A9B

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2a309d;
/* rgb */ color: rgb(42, 48, 157);
/* oklch */ color: oklch(38.4% 0.173 272.5);

Tailwind

colors: {
  custom: {
    50: '#7569bb',
    500: '#2a309d',
    950: '#000000',
  },
}

SCSS

$custom: #2a309d;
$custom-light: #7569bb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a309d",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 157
  },
  "hsl": {
    "h": 236.87,
    "s": 57.789,
    "l": 39.02
  },
  "oklch": {
    "l": 0.38392,
    "c": 0.1728,
    "h": 272.5
  },
  "luminance": 0.0504
}

Semantic roles & 50–950 ramp

primary

#2A309D

secondary

#BEB965

accent

#D947E1

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A309D

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

Preview Lab → · Contrast checker → · Palette generator →