#33428B#33428B

#33428B is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.8% C 0.122 H 271.3°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#33428B
RGB	rgb(51, 66, 139)
HSL	hsl(230, 46%, 37%)
HSV	hsv(230, 63%, 55%)
CMYK	cmyk(63.3%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(30.55, 18.21, -42.61)
CIE-LCH	lch(30.55, 46.34, 293.14°)
OKLab	oklab(40.82% 0.0027 -0.1221)
OKLCH	oklch(40.82% 0.122 271.3)
XYZ	xyz(7.9721, 6.4637, 25.2486)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33428B #8B7C33

analogous

#336E8B #33428B #50338B

triadic

#33428B #8B3342 #428B33

tetradic

#33428B #8B336E #8B7C33 #338B50

square

#33428B #8B336E #8B7C33 #338B50

split-complementary

#33428B #8B5033 #6E8B33

monochromatic

#121731 #232D5E #33428B #4357B8 #6E7ECA

Accessibility & contrast

On white

9.16

#33428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#33428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33428B

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33428B	#FFFFFF	#000000	##FFFFFF
##33428B	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194C8E

Deuteranopia (green-blind)

#014489

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #33428b;
/* rgb */ color: rgb(51, 66, 139);
/* oklch */ color: oklch(40.8% 0.122 271.3);

Tailwind

colors: {
  custom: {
    50: '#7476ad',
    500: '#33428b',
    950: '#000000',
  },
}

SCSS

$custom: #33428b;
$custom-light: #7476ad;
$custom-dark: #000000;

JSON

{
  "hex": "#33428b",
  "rgb": {
    "r": 51,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 229.773,
    "s": 46.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40818,
    "c": 0.1221,
    "h": 271.3
  },
  "luminance": 0.06464
}

Semantic roles & 50–950 ramp

primary

#33428B

secondary

#B2A568

accent

#BF52D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #33428B

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

Preview Lab → · Contrast checker → · Palette generator →