#21689C#21689C

#21689C is a mid, moderate cyan. Relative luminance 0.126; OKLCH L 50.0% C 0.108 H 245.0°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#21689C
RGB	rgb(33, 104, 156)
HSL	hsl(205, 65%, 37%)
HSV	hsv(205, 79%, 61%)
CMYK	cmyk(78.8%, 33.3%, 0%, 38.8%)
CIE-LAB	lab(42.19, -2.97, -34.38)
CIE-LCH	lch(42.19, 34.51, 265.06°)
OKLab	oklab(49.96% -0.0456 -0.0976)
OKLCH	oklch(49.96% 0.108 245)
XYZ	xyz(11.5759, 12.6229, 33.2724)
Luminance	0.1262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21689C #9C5521

analogous

#219C93 #21689C #212B9C

triadic

#21689C #9C2168 #689C21

tetradic

#21689C #93219C #9C5521 #2B9C21

square

#21689C #93219C #9C5521 #2B9C21

split-complementary

#21689C #9C212B #9C9321

monochromatic

#0C2537 #164669 #21689C #2C8ACF #5BA6DC

Accessibility & contrast

On white

5.96

#21689C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#21689C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21689C

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21689C	#FFFFFF	#000000	##FFFFFF
##21689C	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506A9E

Deuteranopia (green-blind)

#3F5E9B

Tritanopia (blue-blind)

#00757B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #21689c;
/* rgb */ color: rgb(33, 104, 156);
/* oklch */ color: oklch(50.0% 0.108 245.0);

Tailwind

colors: {
  custom: {
    50: '#6f92b9',
    500: '#21689c',
    950: '#000000',
  },
}

SCSS

$custom: #21689c;
$custom-light: #6f92b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21689c",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 156
  },
  "hsl": {
    "h": 205.366,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.4996,
    "c": 0.10778,
    "h": 245
  },
  "luminance": 0.12624
}

Semantic roles & 50–950 ramp

primary

#21689C

secondary

#C18458

accent

#8740E8

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090D11

muted

#7B7D80

Preview Lab

Preview with #21689C

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

Preview Lab → · Contrast checker → · Palette generator →