#213B7D#213B7D

#213B7D is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.117 H 265.0°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#213B7D
RGB	rgb(33, 59, 125)
HSL	hsl(223, 58%, 31%)
HSV	hsv(223, 74%, 49%)
CMYK	cmyk(73.6%, 52.8%, 0%, 51%)
CIE-LAB	lab(26.54, 14.52, -40.42)
CIE-LCH	lch(26.54, 42.95, 289.76°)
OKLab	oklab(37.19% -0.0101 -0.1161)
OKLCH	oklch(37.19% 0.117 265)
XYZ	xyz(5.8915, 4.9313, 20.0394)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213B7D #7D6321

analogous

#21697D #213B7D #35217D

triadic

#213B7D #7D213B #3B7D21

tetradic

#213B7D #7D2169 #7D6321 #217D35

square

#213B7D #7D2169 #7D6321 #217D35

split-complementary

#213B7D #7D3521 #697D21

monochromatic

#070D1C #14244D #213B7D #2E52AD #496FCF

Accessibility & contrast

On white

10.57

#213B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#213B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213B7D

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213B7D	#FFFFFF	#000000	##FFFFFF
##213B7D	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13437F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #213b7d;
/* rgb */ color: rgb(33, 59, 125);
/* oklch */ color: oklch(37.2% 0.117 265.0);

Tailwind

colors: {
  custom: {
    50: '#6970a3',
    500: '#213b7d',
    950: '#000000',
  },
}

SCSS

$custom: #213b7d;
$custom-light: #6970a3;
$custom-dark: #000000;

JSON

{
  "hex": "#213b7d",
  "rgb": {
    "r": 33,
    "g": 59,
    "b": 125
  },
  "hsl": {
    "h": 223.043,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37185,
    "c": 0.11659,
    "h": 265
  },
  "luminance": 0.04932
}

Semantic roles & 50–950 ramp

primary

#213B7D

secondary

#B0934A

accent

#B646E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #213B7D

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

Preview Lab → · Contrast checker → · Palette generator →