#213D9B#213D9B

#213D9B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.157 H 266.4°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#213D9B
RGB	rgb(33, 61, 155)
HSL	hsl(226, 65%, 37%)
HSV	hsv(226, 79%, 61%)
CMYK	cmyk(78.7%, 60.6%, 0%, 39.2%)
CIE-LAB	lab(29.48, 25.00, -54.19)
CIE-LCH	lch(29.48, 59.68, 294.76°)
OKLab	oklab(40.15% -0.0097 -0.1566)
OKLCH	oklch(40.15% 0.157 266.4)
XYZ	xyz(8.2103, 6.0264, 31.7345)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213D9B #9B7F21

analogous

#217A9B #213D9B #42219B

triadic

#213D9B #9B213D #3D9B21

tetradic

#213D9B #9B217A #9B7F21 #219B42

square

#213D9B #9B217A #9B7F21 #219B42

split-complementary

#213D9B #9B4221 #7A9B21

monochromatic

#0C1536 #162969 #213D9B #2C51CD #5A78DC

Accessibility & contrast

On white

9.52

#213D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#213D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213D9B

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213D9B	#FFFFFF	#000000	##FFFFFF
##213D9B	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9E

Deuteranopia (green-blind)

#004099

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #213d9b;
/* rgb */ color: rgb(33, 61, 155);
/* oklch */ color: oklch(40.1% 0.157 266.4);

Tailwind

colors: {
  custom: {
    50: '#7172b9',
    500: '#213d9b',
    950: '#000000',
  },
}

SCSS

$custom: #213d9b;
$custom-light: #7172b9;
$custom-dark: #000000;

JSON

{
  "hex": "#213d9b",
  "rgb": {
    "r": 33,
    "g": 61,
    "b": 155
  },
  "hsl": {
    "h": 226.23,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40148,
    "c": 0.15689,
    "h": 266.4
  },
  "luminance": 0.06027
}

Semantic roles & 50–950 ramp

primary

#213D9B

secondary

#C0A858

accent

#C140E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #213D9B

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

Preview Lab → · Contrast checker → · Palette generator →