#2B317A#2B317A

#2B317A is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.123 H 274.7°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#2B317A
RGB	rgb(43, 49, 122)
HSL	hsl(235, 48%, 32%)
HSV	hsv(235, 65%, 48%)
CMYK	cmyk(64.8%, 59.8%, 0%, 52.2%)
CIE-LAB	lab(24.05, 22.01, -42.53)
CIE-LCH	lch(24.05, 47.89, 297.36°)
OKLab	oklab(35.39% 0.01 -0.1223)
OKLCH	oklch(35.39% 0.123 274.7)
XYZ	xyz(5.6063, 4.1149, 18.9074)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B317A #7A742B

analogous

#2B597A #2B317A #4D2B7A

triadic

#2B317A #7A2B31 #317A2B

tetradic

#2B317A #7A2B59 #7A742B #2B7A4D

square

#2B317A #7A2B59 #7A742B #2B7A4D

split-complementary

#2B317A #7A4D2B #597A2B

monochromatic

#0B0D1F #1B1F4D #2B317A #3B43A7 #5A63C5

Accessibility & contrast

On white

11.52

#2B317A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#2B317A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B317A

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B317A	#FFFFFF	#000000	##FFFFFF
##2B317A	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7C

Deuteranopia (green-blind)

#003679

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2b317a;
/* rgb */ color: rgb(43, 49, 122);
/* oklch */ color: oklch(35.4% 0.123 274.7);

Tailwind

colors: {
  custom: {
    50: '#6e69a1',
    500: '#2b317a',
    950: '#000000',
  },
}

SCSS

$custom: #2b317a;
$custom-light: #6e69a1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b317a",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 122
  },
  "hsl": {
    "h": 235.443,
    "s": 47.879,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35395,
    "c": 0.12267,
    "h": 274.7
  },
  "luminance": 0.04115
}

Semantic roles & 50–950 ramp

primary

#2B317A

secondary

#ABA456

accent

#CD50D7

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #2B317A

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

Preview Lab → · Contrast checker → · Palette generator →