#2B3488#2B3488

#2B3488 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.139 H 273.0°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B3488
RGB	rgb(43, 52, 136)
HSL	hsl(234, 52%, 35%)
HSV	hsv(234, 68%, 53%)
CMYK	cmyk(68.4%, 61.8%, 0%, 46.7%)
CIE-LAB	lab(26.00, 25.17, -48.15)
CIE-LCH	lch(26.00, 54.33, 297.60°)
OKLab	oklab(37.2% 0.0072 -0.1387)
OKLCH	oklch(37.2% 0.139 273)
XYZ	xyz(6.6667, 4.7465, 23.8526)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3488 #887F2B

analogous

#2B6288 #2B3488 #512B88

triadic

#2B3488 #882B34 #34882B

tetradic

#2B3488 #882B62 #887F2B #2B8851

square

#2B3488 #882B62 #887F2B #2B8851

split-complementary

#2B3488 #88512B #62882B

monochromatic

#0E102B #1C225A #2B3488 #3A46B6 #616BCD

Accessibility & contrast

On white

10.77

#2B3488 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B3488 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3488

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3488	#FFFFFF	#000000	##FFFFFF
##2B3488	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428B

Deuteranopia (green-blind)

#003986

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b3488;
/* rgb */ color: rgb(43, 52, 136);
/* oklch */ color: oklch(37.2% 0.139 273.0);

Tailwind

colors: {
  custom: {
    50: '#706bab',
    500: '#2b3488',
    950: '#000000',
  },
}

SCSS

$custom: #2b3488;
$custom-light: #706bab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3488",
  "rgb": {
    "r": 43,
    "g": 52,
    "b": 136
  },
  "hsl": {
    "h": 234.194,
    "s": 51.955,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37204,
    "c": 0.13892,
    "h": 273
  },
  "luminance": 0.04747
}

Semantic roles & 50–950 ramp

primary

#2B3488

secondary

#B3AA5C

accent

#CE4CDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2B3488

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

Preview Lab → · Contrast checker → · Palette generator →