#2B188C#2B188C

#2B188C is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.175 H 278.4°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#2B188C
RGB	rgb(43, 24, 140)
HSL	hsl(250, 71%, 32%)
HSV	hsv(250, 83%, 55%)
CMYK	cmyk(69.3%, 82.9%, 0%, 45.1%)
CIE-LAB	lab(20.28, 43.31, -60.04)
CIE-LCH	lch(20.28, 74.03, 305.80°)
OKLab	oklab(33.22% 0.0256 -0.1734)
OKLCH	oklch(33.22% 0.175 278.4)
XYZ	xyz(6.0550, 3.0598, 25.0774)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B188C #798C18

analogous

#183F8C #2B188C #65188C

triadic

#2B188C #8C2B18 #188C2B

tetradic

#2B188C #8C183F #798C18 #188C65

square

#2B188C #8C183F #798C18 #188C65

split-complementary

#2B188C #8C6518 #3F8C18

monochromatic

#0B0624 #1B0F58 #2B188C #3B21C0 #5A40DE

Accessibility & contrast

On white

13.03

#2B188C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2B188C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B188C

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B188C	#FFFFFF	#000000	##FFFFFF
##2B188C	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#002C8A

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b188c;
/* rgb */ color: rgb(43, 24, 140);
/* oklch */ color: oklch(33.2% 0.175 278.4);

Tailwind

colors: {
  custom: {
    50: '#7459af',
    500: '#2b188c',
    950: '#000000',
  },
}

SCSS

$custom: #2b188c;
$custom-light: #7459af;
$custom-dark: #000000;

JSON

{
  "hex": "#2b188c",
  "rgb": {
    "r": 43,
    "g": 24,
    "b": 140
  },
  "hsl": {
    "h": 249.828,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3322,
    "c": 0.1753,
    "h": 278.4
  },
  "luminance": 0.0306
}

Semantic roles & 50–950 ramp

primary

#2B188C

secondary

#AABF41

accent

#ED3AD0

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #2B188C

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

Preview Lab → · Contrast checker → · Palette generator →