#2B188F#2B188F

#2B188F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.179 H 277.9°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B188F
RGB	rgb(43, 24, 143)
HSL	hsl(250, 71%, 33%)
HSV	hsv(250, 83%, 56%)
CMYK	cmyk(69.9%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(20.63, 44.23, -61.33)
CIE-LCH	lch(20.63, 75.61, 305.80°)
OKLab	oklab(33.57% 0.0247 -0.1772)
OKLCH	oklch(33.57% 0.179 277.9)
XYZ	xyz(6.2792, 3.1495, 26.2583)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B188F #7C8F18

analogous

#18408F #2B188F #66188F

triadic

#2B188F #8F2B18 #188F2B

tetradic

#2B188F #8F1840 #7C8F18 #188F66

square

#2B188F #8F1840 #7C8F18 #188F66

split-complementary

#2B188F #8F6618 #408F18

monochromatic

#0B0626 #1B0F5B #2B188F #3B21C3 #5B42DF

Accessibility & contrast

On white

12.88

#2B188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2B188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B188F

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B188F	#FFFFFF	#000000	##FFFFFF
##2B188F	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#002D8D

Tritanopia (blue-blind)

#003D55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b188f;
/* rgb */ color: rgb(43, 24, 143);
/* oklch */ color: oklch(33.6% 0.179 277.9);

Tailwind

colors: {
  custom: {
    50: '#7559b1',
    500: '#2b188f',
    950: '#000000',
  },
}

SCSS

$custom: #2b188f;
$custom-light: #7559b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b188f",
  "rgb": {
    "r": 43,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 249.58,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33565,
    "c": 0.17888,
    "h": 277.9
  },
  "luminance": 0.0315
}

Semantic roles & 50–950 ramp

primary

#2B188F

secondary

#ACC043

accent

#EE3AD1

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2B188F

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

Preview Lab → · Contrast checker → · Palette generator →