#2B188E#2B188E

#2B188E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.5% C 0.178 H 278.1°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#2B188E
RGB	rgb(43, 24, 142)
HSL	hsl(250, 71%, 33%)
HSV	hsv(250, 83%, 56%)
CMYK	cmyk(69.7%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(20.52, 43.92, -60.90)
CIE-LCH	lch(20.52, 75.09, 305.80°)
OKLab	oklab(33.45% 0.025 -0.1759)
OKLCH	oklch(33.45% 0.178 278.1)
XYZ	xyz(6.2038, 3.1193, 25.8611)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B188E #7B8E18

analogous

#18408E #2B188E #66188E

triadic

#2B188E #8E2B18 #188E2B

tetradic

#2B188E #8E1840 #7B8E18 #188E66

square

#2B188E #8E1840 #7B8E18 #188E66

split-complementary

#2B188E #8E6618 #408E18

monochromatic

#0B0625 #1B0F5A #2B188E #3B21C2 #5B41DF

Accessibility & contrast

On white

12.93

#2B188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#2B188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B188E

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B188E	#FFFFFF	#000000	##FFFFFF
##2B188E	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002D8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b188e;
/* rgb */ color: rgb(43, 24, 142);
/* oklch */ color: oklch(33.5% 0.178 278.1);

Tailwind

colors: {
  custom: {
    50: '#7459b0',
    500: '#2b188e',
    950: '#000000',
  },
}

SCSS

$custom: #2b188e;
$custom-light: #7459b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b188e",
  "rgb": {
    "r": 43,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 249.661,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3345,
    "c": 0.17768,
    "h": 278.1
  },
  "luminance": 0.0312
}

Semantic roles & 50–950 ramp

primary

#2B188E

secondary

#ABC042

accent

#EE3AD1

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2B188E

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

Preview Lab → · Contrast checker → · Palette generator →