#213F9F#213F9F

#213F9F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.160 H 266.1°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#213F9F
RGB	rgb(33, 63, 159)
HSL	hsl(226, 66%, 38%)
HSV	hsv(226, 79%, 62%)
CMYK	cmyk(79.2%, 60.4%, 0%, 37.6%)
CIE-LAB	lab(30.35, 25.20, -55.19)
CIE-LCH	lch(30.35, 60.67, 294.54°)
OKLab	oklab(40.9% -0.011 -0.1595)
OKLCH	oklch(40.9% 0.16 266.1)
XYZ	xyz(8.6605, 6.3806, 33.5693)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213F9F #9F8121

analogous

#217E9F #213F9F #42219F

triadic

#213F9F #9F213F #3F9F21

tetradic

#213F9F #9F217E #9F8121 #219F42

square

#213F9F #9F217E #9F8121 #219F42

split-complementary

#213F9F #9F4221 #7E9F21

monochromatic

#0C173A #162B6C #213F9F #2C53D2 #5D7CDD

Accessibility & contrast

On white

9.23

#213F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#213F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213F9F

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213F9F	#FFFFFF	#000000	##FFFFFF
##213F9F	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #213f9f;
/* rgb */ color: rgb(33, 63, 159);
/* oklch */ color: oklch(40.9% 0.160 266.1);

Tailwind

colors: {
  custom: {
    50: '#7173bc',
    500: '#213f9f',
    950: '#000000',
  },
}

SCSS

$custom: #213f9f;
$custom-light: #7173bc;
$custom-dark: #000000;

JSON

{
  "hex": "#213f9f",
  "rgb": {
    "r": 33,
    "g": 63,
    "b": 159
  },
  "hsl": {
    "h": 225.714,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40904,
    "c": 0.15988,
    "h": 266.1
  },
  "luminance": 0.06382
}

Semantic roles & 50–950 ramp

primary

#213F9F

secondary

#C2A95A

accent

#C03FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #213F9F

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

Preview Lab → · Contrast checker → · Palette generator →