#21688A#21688A

#21688A is a mid, moderate cyan. Relative luminance 0.121; OKLCH L 49.0% C 0.087 H 233.7°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#21688A
RGB	rgb(33, 104, 138)
HSL	hsl(199, 61%, 34%)
HSV	hsv(199, 76%, 54%)
CMYK	cmyk(76.1%, 24.6%, 0%, 45.9%)
CIE-LAB	lab(41.31, -9.70, -25.00)
CIE-LCH	lch(41.31, 26.82, 248.80°)
OKLab	oklab(48.97% -0.0517 -0.0704)
OKLCH	oklch(48.97% 0.087 233.7)
XYZ	xyz(10.1631, 12.0578, 25.8316)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21688A #8A4321

analogous

#218A77 #21688A #21338A

triadic

#21688A #8A2168 #688A21

tetradic

#21688A #77218A #8A4321 #338A21

square

#21688A #77218A #8A4321 #338A21

split-complementary

#21688A #8A2133 #8A7721

monochromatic

#091E27 #154359 #21688A #2D8DBB #50AAD5

Accessibility & contrast

On white

6.16

#21688A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#21688A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21688A

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21688A	#FFFFFF	#000000	##FFFFFF
##21688A	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57678C

Deuteranopia (green-blind)

#495D89

Tritanopia (blue-blind)

#007173

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #21688a;
/* rgb */ color: rgb(33, 104, 138);
/* oklch */ color: oklch(49.0% 0.087 233.7);

Tailwind

colors: {
  custom: {
    50: '#6c93ac',
    500: '#21688a',
    950: '#000000',
  },
}

SCSS

$custom: #21688a;
$custom-light: #6c93ac;
$custom-dark: #000000;

JSON

{
  "hex": "#21688a",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 138
  },
  "hsl": {
    "h": 199.429,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.48971,
    "c": 0.08735,
    "h": 233.7
  },
  "luminance": 0.12059
}

Semantic roles & 50–950 ramp

primary

#21688A

secondary

#B9714E

accent

#7743E5

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #21688A

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

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