#212D8B#212D8B

#212D8B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.6% C 0.155 H 270.4°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#212D8B
RGB	rgb(33, 45, 139)
HSL	hsl(233, 62%, 34%)
HSV	hsv(233, 76%, 55%)
CMYK	cmyk(76.3%, 67.6%, 0%, 45.5%)
CIE-LAB	lab(23.88, 29.64, -53.51)
CIE-LCH	lch(23.88, 61.17, 298.98°)
OKLab	oklab(35.57% 0.0012 -0.1548)
OKLCH	oklch(35.57% 0.155 270.4)
XYZ	xyz(6.2242, 4.0635, 24.8774)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212D8B #8B7F21

analogous

#21628B #212D8B #4A218B

triadic

#212D8B #8B212D #2D8B21

tetradic

#212D8B #8B2162 #8B7F21 #218B4A

square

#212D8B #8B2162 #8B7F21 #218B4A

split-complementary

#212D8B #8B4A21 #628B21

monochromatic

#0A0D28 #151D5A #212D8B #2D3DBC #5160D6

Accessibility & contrast

On white

11.58

#212D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#212D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212D8B

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212D8B	#FFFFFF	#000000	##FFFFFF
##212D8B	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #212d8b;
/* rgb */ color: rgb(33, 45, 139);
/* oklch */ color: oklch(35.6% 0.155 270.4);

Tailwind

colors: {
  custom: {
    50: '#6e66ae',
    500: '#212d8b',
    950: '#000000',
  },
}

SCSS

$custom: #212d8b;
$custom-light: #6e66ae;
$custom-dark: #000000;

JSON

{
  "hex": "#212d8b",
  "rgb": {
    "r": 33,
    "g": 45,
    "b": 139
  },
  "hsl": {
    "h": 233.208,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.35571,
    "c": 0.15476,
    "h": 270.4
  },
  "luminance": 0.04064
}

Semantic roles & 50–950 ramp

primary

#212D8B

secondary

#B9AD4F

accent

#D243E5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #212D8B

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

Preview Lab → · Contrast checker → · Palette generator →