#213F9D#213F9D

#213F9D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.157 H 266.0°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#213F9D
RGB	rgb(33, 63, 157)
HSL	hsl(225, 65%, 37%)
HSV	hsv(225, 79%, 62%)
CMYK	cmyk(79%, 59.9%, 0%, 38.4%)
CIE-LAB	lab(30.19, 24.42, -54.25)
CIE-LCH	lch(30.19, 59.49, 294.23°)
OKLab	oklab(40.73% -0.011 -0.1567)
OKLCH	oklch(40.73% 0.157 266)
XYZ	xyz(8.4884, 6.3117, 32.6627)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F9D #9D7F21

analogous

#217D9D #213F9D #41219D

triadic

#213F9D #9D213F #3F9D21

tetradic

#213F9D #9D217D #9D7F21 #219D41

square

#213F9D #9D217D #9D7F21 #219D41

split-complementary

#213F9D #9D4121 #7D9D21

monochromatic

#0C1638 #162B6A #213F9D #2C53D0 #5C7BDD

Accessibility & contrast

On white

9.28

#213F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#213F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F9D

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F9D	#FFFFFF	#000000	##FFFFFF
##213F9D	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00429B

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #213f9d;
/* rgb */ color: rgb(33, 63, 157);
/* oklch */ color: oklch(40.7% 0.157 266.0);

Tailwind

colors: {
  custom: {
    50: '#7173bb',
    500: '#213f9d',
    950: '#000000',
  },
}

SCSS

$custom: #213f9d;
$custom-light: #7173bb;
$custom-dark: #000000;

JSON

{
  "hex": "#213f9d",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 157
  },
  "hsl": {
    "h": 225.484,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40727,
    "c": 0.15713,
    "h": 266
  },
  "luminance": 0.06313
}

Semantic roles & 50–950 ramp

primary

#213F9D

secondary

#C1A859

accent

#BF40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #213F9D

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

Preview Lab → · Contrast checker → · Palette generator →