#2B428B#2B428B

#2B428B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.3% C 0.125 H 267.4°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX	#2B428B
RGB	rgb(43, 66, 139)
HSL	hsl(226, 53%, 36%)
HSV	hsv(226, 69%, 55%)
CMYK	cmyk(69.1%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(30.09, 16.76, -43.38)
CIE-LCH	lch(30.09, 46.50, 291.13°)
OKLab	oklab(40.35% -0.0056 -0.1245)
OKLCH	oklch(40.35% 0.125 267.4)
XYZ	xyz(7.6031, 6.2734, 25.2313)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B428B #8B742B

analogous

#2B728B #2B428B #442B8B

triadic

#2B428B #8B2B42 #428B2B

tetradic

#2B428B #8B2B72 #8B742B #2B8B44

square

#2B428B #8B2B72 #8B742B #2B8B44

split-complementary

#2B428B #8B442B #728B2B

monochromatic

#0E162E #1D2C5C #2B428B #3958BA #627CCE

Accessibility & contrast

On white

9.31

#2B428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#2B428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B428B

9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B428B	#FFFFFF	#000000	##FFFFFF
##2B428B	1.00	9.31	2.25	9.31
#FFFFFF	9.31	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164B8E

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2b428b;
/* rgb */ color: rgb(43, 66, 139);
/* oklch */ color: oklch(40.3% 0.125 267.4);

Tailwind

colors: {
  custom: {
    50: '#7076ad',
    500: '#2b428b',
    950: '#000000',
  },
}

SCSS

$custom: #2b428b;
$custom-light: #7076ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b428b",
  "rgb": {
    "r": 43,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 225.625,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40345,
    "c": 0.12464,
    "h": 267.4
  },
  "luminance": 0.06274
}

Semantic roles & 50–950 ramp

primary

#2B428B

secondary

#B5A05D

accent

#BA4CDC

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B428B

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

Preview Lab → · Contrast checker → · Palette generator →