#216D9B#216D9B

#216D9B is a mid, moderate cyan. Relative luminance 0.136; OKLCH L 51.1% C 0.102 H 240.3°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#216D9B
RGB	rgb(33, 109, 155)
HSL	hsl(203, 65%, 37%)
HSV	hsv(203, 79%, 61%)
CMYK	cmyk(78.7%, 29.7%, 0%, 39.2%)
CIE-LAB	lab(43.69, -6.39, -31.43)
CIE-LCH	lch(43.69, 32.07, 258.51°)
OKLab	oklab(51.13% -0.0508 -0.0889)
OKLCH	oklch(51.13% 0.102 240.3)
XYZ	xyz(12.0099, 13.6257, 33.0010)
Luminance	0.1363 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#216D9B #9B4F21

analogous

#219B8C #216D9B #21309B

triadic

#216D9B #9B216D #6D9B21

tetradic

#216D9B #8C219B #9B4F21 #309B21

square

#216D9B #8C219B #9B4F21 #309B21

split-complementary

#216D9B #9B2130 #9B8C21

monochromatic

#0C2636 #164A69 #216D9B #2C90CD #5AABDC

Accessibility & contrast

On white

5.64

#216D9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#216D9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #216D9B

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##216D9B	#FFFFFF	#000000	##FFFFFF
##216D9B	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576E9D

Deuteranopia (green-blind)

#47629A

Tritanopia (blue-blind)

#00797D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #216d9b;
/* rgb */ color: rgb(33, 109, 155);
/* oklch */ color: oklch(51.1% 0.102 240.3);

Tailwind

colors: {
  custom: {
    50: '#6f96b8',
    500: '#216d9b',
    950: '#000000',
  },
}

SCSS

$custom: #216d9b;
$custom-light: #6f96b8;
$custom-dark: #000000;

JSON

{
  "hex": "#216d9b",
  "rgb": {
    "r": 33,
    "g": 109,
    "b": 155
  },
  "hsl": {
    "h": 202.623,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.51131,
    "c": 0.10241,
    "h": 240.3
  },
  "luminance": 0.13627
}

Semantic roles & 50–950 ramp

primary

#216D9B

secondary

#C07F58

accent

#7F40E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #216D9B

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

Preview Lab → · Contrast checker → · Palette generator →