#2B317D#2B317D

#2B317D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.127 H 274.5°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#2B317D
RGB	rgb(43, 49, 125)
HSL	hsl(236, 49%, 33%)
HSV	hsv(236, 66%, 49%)
CMYK	cmyk(65.6%, 60.8%, 0%, 51%)
CIE-LAB	lab(24.29, 23.12, -44.03)
CIE-LCH	lch(24.29, 49.74, 297.70°)
OKLab	oklab(35.65% 0.01 -0.1267)
OKLCH	oklch(35.65% 0.127 274.5)
XYZ	xyz(5.7950, 4.1904, 19.9015)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B317D #7D772B

analogous

#2B5A7D #2B317D #4E2B7D

triadic

#2B317D #7D2B31 #317D2B

tetradic

#2B317D #7D2B5A #7D772B #2B7D4E

square

#2B317D #7D2B5A #7D772B #2B7D4E

split-complementary

#2B317D #7D4E2B #5A7D2B

monochromatic

#0C0D22 #1B1F4F #2B317D #3B43AB #5C63C7

Accessibility & contrast

On white

11.42

#2B317D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#2B317D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B317D

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B317D	#FFFFFF	#000000	##FFFFFF
##2B317D	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D80

Deuteranopia (green-blind)

#00367B

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b317d;
/* rgb */ color: rgb(43, 49, 125);
/* oklch */ color: oklch(35.7% 0.127 274.5);

Tailwind

colors: {
  custom: {
    50: '#6e69a3',
    500: '#2b317d',
    950: '#000000',
  },
}

SCSS

$custom: #2b317d;
$custom-light: #6e69a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b317d",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 125
  },
  "hsl": {
    "h": 235.61,
    "s": 48.81,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35652,
    "c": 0.12708,
    "h": 274.5
  },
  "luminance": 0.04191
}

Semantic roles & 50–950 ramp

primary

#2B317D

secondary

#ADA657

accent

#CE4FD8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B317D

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

Preview Lab → · Contrast checker → · Palette generator →