#212F9D#212F9D

#212F9D is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.7% C 0.176 H 269.5°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#212F9D
RGB	rgb(33, 47, 157)
HSL	hsl(233, 65%, 37%)
HSV	hsv(233, 79%, 62%)
CMYK	cmyk(79%, 70.1%, 0%, 38.4%)
CIE-LAB	lab(26.13, 35.02, -60.90)
CIE-LCH	lch(26.13, 70.25, 299.90°)
OKLab	oklab(37.74% -0.0016 -0.1763)
OKLCH	oklch(37.74% 0.176 269.5)
XYZ	xyz(7.7274, 4.7898, 32.4090)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#212F9D #9D8F21

analogous

#216D9D #212F9D #51219D

triadic

#212F9D #9D212F #2F9D21

tetradic

#212F9D #9D216D #9D8F21 #219D51

square

#212F9D #9D216D #9D8F21 #219D51

split-complementary

#212F9D #9D5121 #6D9D21

monochromatic

#0C1138 #16206A #212F9D #2C3ED0 #5C6ADD

Accessibility & contrast

On white

10.72

#212F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#212F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #212F9D

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##212F9D	#FFFFFF	#000000	##FFFFFF
##212F9D	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A0

Deuteranopia (green-blind)

#00389B

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #212f9d;
/* rgb */ color: rgb(33, 47, 157);
/* oklch */ color: oklch(37.7% 0.176 269.5);

Tailwind

colors: {
  custom: {
    50: '#7268bb',
    500: '#212f9d',
    950: '#000000',
  },
}

SCSS

$custom: #212f9d;
$custom-light: #7268bb;
$custom-dark: #000000;

JSON

{
  "hex": "#212f9d",
  "rgb": {
    "r": 33,
    "g": 47,
    "b": 157
  },
  "hsl": {
    "h": 233.226,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.3774,
    "c": 0.17636,
    "h": 269.5
  },
  "luminance": 0.04791
}

Semantic roles & 50–950 ramp

primary

#212F9D

secondary

#C1B559

accent

#D540E8

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #212F9D

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

Preview Lab → · Contrast checker → · Palette generator →