#2B237D#2B237D

#2B237D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.1% C 0.145 H 278.9°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B237D
RGB	rgb(43, 35, 125)
HSL	hsl(245, 56%, 31%)
HSV	hsv(245, 72%, 49%)
CMYK	cmyk(65.6%, 72%, 0%, 51%)
CIE-LAB	lab(20.81, 32.32, -49.72)
CIE-LCH	lch(20.81, 59.30, 303.03°)
OKLab	oklab(33.11% 0.0224 -0.1434)
OKLCH	oklch(33.11% 0.145 278.9)
XYZ	xyz(5.2978, 3.1959, 19.7358)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B237D #757D23

analogous

#23487D #2B237D #58237D

triadic

#2B237D #7D2B23 #237D2B

tetradic

#2B237D #7D2348 #757D23 #237D58

square

#2B237D #7D2348 #757D23 #237D58

split-complementary

#2B237D #7D5823 #487D23

monochromatic

#0A081D #1B164D #2B237D #3B30AD #594DCD

Accessibility & contrast

On white

12.81

#2B237D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#2B237D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B237D

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B237D	#FFFFFF	#000000	##FFFFFF
##2B237D	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003680

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b237d;
/* rgb */ color: rgb(43, 35, 125);
/* oklch */ color: oklch(33.1% 0.145 278.9);

Tailwind

colors: {
  custom: {
    50: '#705fa4',
    500: '#2b237d',
    950: '#000000',
  },
}

SCSS

$custom: #2b237d;
$custom-light: #705fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b237d",
  "rgb": {
    "r": 43,
    "g": 35,
    "b": 125
  },
  "hsl": {
    "h": 245.333,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33112,
    "c": 0.14516,
    "h": 278.9
  },
  "luminance": 0.03196
}

Semantic roles & 50–950 ramp

primary

#2B237D

secondary

#A7AF4C

accent

#E048D2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2B237D

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

Preview Lab → · Contrast checker → · Palette generator →