#2B288E#2B288E

#2B288E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.6% C 0.162 H 275.6°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B288E
RGB	rgb(43, 40, 142)
HSL	hsl(242, 56%, 36%)
HSV	hsv(242, 72%, 56%)
CMYK	cmyk(69.7%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(23.62, 35.12, -55.78)
CIE-LCH	lch(23.62, 65.92, 302.19°)
OKLab	oklab(35.64% 0.0159 -0.1612)
OKLCH	oklch(35.64% 0.162 275.6)
XYZ	xyz(6.6359, 3.9836, 26.0051)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B288E #8B8E28

analogous

#28588E #2B288E #5E288E

triadic

#2B288E #8E2B28 #288E2B

tetradic

#2B288E #8E2858 #8B8E28 #288E5E

square

#2B288E #8E2858 #8B8E28 #288E5E

split-complementary

#2B288E #8E5E28 #588E28

monochromatic

#0E0D2F #1D1B5E #2B288E #3935BE #625FD2

Accessibility & contrast

On white

11.69

#2B288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2B288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B288E

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B288E	#FFFFFF	#000000	##FFFFFF
##2B288E	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00348C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b288e;
/* rgb */ color: rgb(43, 40, 142);
/* oklch */ color: oklch(35.6% 0.162 275.6);

Tailwind

colors: {
  custom: {
    50: '#7363b0',
    500: '#2b288e',
    950: '#000000',
  },
}

SCSS

$custom: #2b288e;
$custom-light: #7363b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b288e",
  "rgb": {
    "r": 43,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 241.765,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35636,
    "c": 0.16195,
    "h": 275.6
  },
  "luminance": 0.03984
}

Semantic roles & 50–950 ramp

primary

#2B288E

secondary

#B5B75B

accent

#DF48DB

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2B288E

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

Preview Lab → · Contrast checker → · Palette generator →