#213A9B#213A9B

#213A9B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.161 H 267.2°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#213A9B
RGB	rgb(33, 58, 155)
HSL	hsl(228, 65%, 37%)
HSV	hsv(228, 79%, 61%)
CMYK	cmyk(78.7%, 62.6%, 0%, 39.2%)
CIE-LAB	lab(28.68, 27.03, -55.49)
CIE-LCH	lch(28.68, 61.72, 295.97°)
OKLab	oklab(39.56% -0.0077 -0.1604)
OKLCH	oklch(39.56% 0.161 267.2)
XYZ	xyz(8.0546, 5.7151, 31.6826)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213A9B #9B8221

analogous

#21779B #213A9B #45219B

triadic

#213A9B #9B213A #3A9B21

tetradic

#213A9B #9B2177 #9B8221 #219B45

square

#213A9B #9B2177 #9B8221 #219B45

split-complementary

#213A9B #9B4521 #779B21

monochromatic

#0C1436 #162769 #213A9B #2C4DCD #5A75DC

Accessibility & contrast

On white

9.80

#213A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#213A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213A9B

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213A9B	#FFFFFF	#000000	##FFFFFF
##213A9B	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #213a9b;
/* rgb */ color: rgb(33, 58, 155);
/* oklch */ color: oklch(39.6% 0.161 267.2);

Tailwind

colors: {
  custom: {
    50: '#716fb9',
    500: '#213a9b',
    950: '#000000',
  },
}

SCSS

$custom: #213a9b;
$custom-light: #716fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#213a9b",
  "rgb": {
    "r": 33,
    "g": 58,
    "b": 155
  },
  "hsl": {
    "h": 227.705,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39555,
    "c": 0.16064,
    "h": 267.2
  },
  "luminance": 0.05716
}

Semantic roles & 50–950 ramp

primary

#213A9B

secondary

#C0AB58

accent

#C540E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #213A9B

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

Preview Lab → · Contrast checker → · Palette generator →