#21699B#21699B

#21699B is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 50.1% C 0.106 H 243.7°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#21699B
RGB	rgb(33, 105, 155)
HSL	hsl(205, 65%, 37%)
HSV	hsv(205, 79%, 61%)
CMYK	cmyk(78.7%, 32.3%, 0%, 39.2%)
CIE-LAB	lab(42.45, -3.97, -33.38)
CIE-LCH	lch(42.45, 33.62, 263.22°)
OKLab	oklab(50.15% -0.0469 -0.0947)
OKLCH	oklch(50.15% 0.106 243.7)
XYZ	xyz(11.5929, 12.7917, 32.8620)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21699B #9B5321

analogous

#219B90 #21699B #212C9B

triadic

#21699B #9B2169 #699B21

tetradic

#21699B #90219B #9B5321 #2C9B21

square

#21699B #90219B #9B5321 #2C9B21

split-complementary

#21699B #9B212C #9B9021

monochromatic

#0C2536 #164769 #21699B #2C8BCD #5AA7DC

Accessibility & contrast

On white

5.90

#21699B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#21699B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21699B

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21699B	#FFFFFF	#000000	##FFFFFF
##21699B	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526A9D

Deuteranopia (green-blind)

#415F9A

Tritanopia (blue-blind)

#00757B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #21699b;
/* rgb */ color: rgb(33, 105, 155);
/* oklch */ color: oklch(50.1% 0.106 243.7);

Tailwind

colors: {
  custom: {
    50: '#6f93b8',
    500: '#21699b',
    950: '#000000',
  },
}

SCSS

$custom: #21699b;
$custom-light: #6f93b8;
$custom-dark: #000000;

JSON

{
  "hex": "#21699b",
  "rgb": {
    "r": 33,
    "g": 105,
    "b": 155
  },
  "hsl": {
    "h": 204.59,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.50147,
    "c": 0.10567,
    "h": 243.7
  },
  "luminance": 0.12793
}

Semantic roles & 50–950 ramp

primary

#21699B

secondary

#C08258

accent

#8540E8

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#080D11

muted

#7B7E80

Preview Lab

Preview with #21699B

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

Preview Lab → · Contrast checker → · Palette generator →