#213D5B#213D5B

#213D5B is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.3% C 0.063 H 251.5°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#213D5B
RGB	rgb(33, 61, 91)
HSL	hsl(211, 47%, 24%)
HSV	hsv(211, 64%, 36%)
CMYK	cmyk(63.7%, 33%, 0%, 64.3%)
CIE-LAB	lab(25.00, -0.19, -21.10)
CIE-LCH	lch(25.00, 21.10, 269.49°)
OKLab	oklab(35.3% -0.0199 -0.0595)
OKLCH	oklch(35.3% 0.063 251.5)
XYZ	xyz(4.1836, 4.4158, 10.5274)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#213D5B #5B3F21

analogous

#215A5B #213D5B #22215B

triadic

#213D5B #5B213D #3D5B21

tetradic

#213D5B #5B215A #5B3F21 #215B22

square

#213D5B #5B215A #5B3F21 #215B22

split-complementary

#213D5B #5B2221 #5A5B21

monochromatic

#080F16 #111F2E #213D5B #315B88 #4279B5

Accessibility & contrast

On white

11.15

#213D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#213D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #213D5B

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##213D5B	#FFFFFF	#000000	##FFFFFF
##213D5B	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303E5C

Deuteranopia (green-blind)

#29395A

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #213d5b;
/* rgb */ color: rgb(33, 61, 91);
/* oklch */ color: oklch(35.3% 0.063 251.5);

Tailwind

colors: {
  custom: {
    50: '#627289',
    500: '#213d5b',
    950: '#000000',
  },
}

SCSS

$custom: #213d5b;
$custom-light: #627289;
$custom-dark: #000000;

JSON

{
  "hex": "#213d5b",
  "rgb": {
    "r": 33,
    "g": 61,
    "b": 91
  },
  "hsl": {
    "h": 211.034,
    "s": 46.774,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35298,
    "c": 0.06273,
    "h": 251.5
  },
  "luminance": 0.04416
}

Semantic roles & 50–950 ramp

primary

#213D5B

secondary

#8F6D49

accent

#9651D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #213D5B

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

Preview Lab → · Contrast checker → · Palette generator →