#213F99#213F99

#213F99 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.152 H 265.8°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#213F99
RGB	rgb(33, 63, 153)
HSL	hsl(225, 65%, 36%)
HSV	hsv(225, 78%, 60%)
CMYK	cmyk(78.4%, 58.8%, 0%, 40%)
CIE-LAB	lab(29.86, 22.85, -52.36)
CIE-LCH	lch(29.86, 57.13, 293.58°)
OKLab	oklab(40.38% -0.0112 -0.1512)
OKLCH	oklch(40.38% 0.152 265.8)
XYZ	xyz(8.1525, 6.1773, 30.8935)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F99 #997B21

analogous

#217B99 #213F99 #3F2199

triadic

#213F99 #99213F #3F9921

tetradic

#213F99 #99217B #997B21 #21993F

square

#213F99 #99217B #997B21 #21993F

split-complementary

#213F99 #993F21 #7B9921

monochromatic

#0B1634 #162A67 #213F99 #2C54CB #597ADB

Accessibility & contrast

On white

9.39

#213F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#213F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F99

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F99	#FFFFFF	#000000	##FFFFFF
##213F99	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005665

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #213f99;
/* rgb */ color: rgb(33, 63, 153);
/* oklch */ color: oklch(40.4% 0.152 265.8);

Tailwind

colors: {
  custom: {
    50: '#7073b8',
    500: '#213f99',
    950: '#000000',
  },
}

SCSS

$custom: #213f99;
$custom-light: #7073b8;
$custom-dark: #000000;

JSON

{
  "hex": "#213f99",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 225,
    "s": 64.516,
    "l": 36.471
  },
  "oklch": {
    "l": 0.40377,
    "c": 0.15159,
    "h": 265.8
  },
  "luminance": 0.06178
}

Semantic roles & 50–950 ramp

primary

#213F99

secondary

#BFA556

accent

#BE40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #213F99

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

Preview Lab → · Contrast checker → · Palette generator →