#212FA5#212FA5

#212FA5 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.6% C 0.187 H 269.3°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#212FA5
RGB	rgb(33, 47, 165)
HSL	hsl(234, 67%, 39%)
HSV	hsv(234, 80%, 65%)
CMYK	cmyk(80%, 71.5%, 0%, 35.3%)
CIE-LAB	lab(26.94, 37.92, -64.42)
CIE-LCH	lch(26.94, 74.76, 300.48°)
OKLab	oklab(38.57% -0.0024 -0.1866)
OKLCH	oklch(38.57% 0.187 269.3)
XYZ	xyz(8.4329, 5.0720, 36.1246)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212FA5 #A59721

analogous

#2171A5 #212FA5 #5521A5

triadic

#212FA5 #A5212F #2FA521

tetradic

#212FA5 #A52171 #A59721 #21A555

square

#212FA5 #A52171 #A59721 #21A555

split-complementary

#212FA5 #A55521 #71A521

monochromatic

#0D123F #172072 #212FA5 #2E40D5 #616EDF

Accessibility & contrast

On white

10.42

#212FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#212FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212FA5

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212FA5	#FFFFFF	#000000	##FFFFFF
##212FA5	1.00	10.42	2.01	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A9

Deuteranopia (green-blind)

#0039A3

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #212fa5;
/* rgb */ color: rgb(33, 47, 165);
/* oklch */ color: oklch(38.6% 0.187 269.3);

Tailwind

colors: {
  custom: {
    50: '#7468c1',
    500: '#212fa5',
    950: '#000000',
  },
}

SCSS

$custom: #212fa5;
$custom-light: #7468c1;
$custom-dark: #000000;

JSON

{
  "hex": "#212fa5",
  "rgb": {
    "r": 33,
    "g": 47,
    "b": 165
  },
  "hsl": {
    "h": 233.636,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.3857,
    "c": 0.18663,
    "h": 269.3
  },
  "luminance": 0.05073
}

Semantic roles & 50–950 ramp

primary

#212FA5

secondary

#C4B95E

accent

#D73EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #212FA5

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

Preview Lab → · Contrast checker → · Palette generator →