#2D428B#2D428B

#2D428B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.5% C 0.124 H 268.3°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#2D428B
RGB	rgb(45, 66, 139)
HSL	hsl(227, 51%, 36%)
HSV	hsv(227, 68%, 55%)
CMYK	cmyk(67.6%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(30.20, 17.11, -43.20)
CIE-LCH	lch(30.20, 46.46, 291.60°)
OKLab	oklab(40.46% -0.0036 -0.1239)
OKLCH	oklch(40.46% 0.124 268.3)
XYZ	xyz(7.6890, 6.3177, 25.2353)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D428B #8B762D

analogous

#2D718B #2D428B #472D8B

triadic

#2D428B #8B2D42 #428B2D

tetradic

#2D428B #8B2D71 #8B762D #2D8B47

square

#2D428B #8B2D71 #8B762D #2D8B47

split-complementary

#2D428B #8B472D #718B2D

monochromatic

#0F162F #1E2C5D #2D428B #3C58B9 #657CCD

Accessibility & contrast

On white

9.28

#2D428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#2D428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D428B

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D428B	#FFFFFF	#000000	##FFFFFF
##2D428B	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174C8E

Deuteranopia (green-blind)

#00438A

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2d428b;
/* rgb */ color: rgb(45, 66, 139);
/* oklch */ color: oklch(40.5% 0.124 268.3);

Tailwind

colors: {
  custom: {
    50: '#7176ad',
    500: '#2d428b',
    950: '#000000',
  },
}

SCSS

$custom: #2d428b;
$custom-light: #7176ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2d428b",
  "rgb": {
    "r": 45,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 226.596,
    "s": 51.087,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40456,
    "c": 0.12399,
    "h": 268.3
  },
  "luminance": 0.06318
}

Semantic roles & 50–950 ramp

primary

#2D428B

secondary

#B4A160

accent

#BB4DDB

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2D428B

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

Preview Lab → · Contrast checker → · Palette generator →