#213C9B#213C9B

#213C9B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.158 H 266.7°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#213C9B
RGB	rgb(33, 60, 155)
HSL	hsl(227, 65%, 37%)
HSV	hsv(227, 79%, 61%)
CMYK	cmyk(78.7%, 61.3%, 0%, 39.2%)
CIE-LAB	lab(29.21, 25.67, -54.63)
CIE-LCH	lch(29.21, 60.36, 295.17°)
OKLab	oklab(39.95% -0.0091 -0.1579)
OKLCH	oklch(39.95% 0.158 266.7)
XYZ	xyz(8.1574, 5.9207, 31.7169)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213C9B #9B8021

analogous

#21799B #213C9B #43219B

triadic

#213C9B #9B213C #3C9B21

tetradic

#213C9B #9B2179 #9B8021 #219B43

square

#213C9B #9B2179 #9B8021 #219B43

split-complementary

#213C9B #9B4321 #799B21

monochromatic

#0C1536 #162869 #213C9B #2C50CD #5A77DC

Accessibility & contrast

On white

9.61

#213C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#213C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213C9B

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213C9B	#FFFFFF	#000000	##FFFFFF
##213C9B	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #213c9b;
/* rgb */ color: rgb(33, 60, 155);
/* oklch */ color: oklch(39.9% 0.158 266.7);

Tailwind

colors: {
  custom: {
    50: '#7171b9',
    500: '#213c9b',
    950: '#000000',
  },
}

SCSS

$custom: #213c9b;
$custom-light: #7171b9;
$custom-dark: #000000;

JSON

{
  "hex": "#213c9b",
  "rgb": {
    "r": 33,
    "g": 60,
    "b": 155
  },
  "hsl": {
    "h": 226.721,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39948,
    "c": 0.15814,
    "h": 266.7
  },
  "luminance": 0.05922
}

Semantic roles & 50–950 ramp

primary

#213C9B

secondary

#C0A958

accent

#C340E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #213C9B

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

Preview Lab → · Contrast checker → · Palette generator →