#166399#166399

#166399 is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.3% C 0.112 H 245.3°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#166399
RGB	rgb(22, 99, 153)
HSL	hsl(205, 75%, 34%)
HSV	hsv(205, 86%, 60%)
CMYK	cmyk(85.6%, 35.3%, 0%, 40%)
CIE-LAB	lab(40.23, -2.17, -35.70)
CIE-LCH	lch(40.23, 35.77, 266.52°)
OKLab	oklab(48.3% -0.0468 -0.1017)
OKLCH	oklch(48.3% 0.112 245.3)
XYZ	xyz(10.5402, 11.3928, 31.7743)
Luminance	0.1139 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#166399 #994C16

analogous

#16998E #166399 #162199

triadic

#166399 #991663 #639916

tetradic

#166399 #8E1699 #994C16 #219916

square

#166399 #8E1699 #994C16 #219916

split-complementary

#166399 #991621 #998E16

monochromatic

#071E2E #0E4063 #166399 #1E86CF #45A3E4

Accessibility & contrast

On white

6.40

#166399 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#166399 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #166399

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##166399	#FFFFFF	#000000	##FFFFFF
##166399	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49659B

Deuteranopia (green-blind)

#375A98

Tritanopia (blue-blind)

#007077

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #166399;
/* rgb */ color: rgb(22, 99, 153);
/* oklch */ color: oklch(48.3% 0.112 245.3);

Tailwind

colors: {
  custom: {
    50: '#6c8fb7',
    500: '#166399',
    950: '#000000',
  },
}

SCSS

$custom: #166399;
$custom-light: #6c8fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#166399",
  "rgb": {
    "r": 22,
    "g": 99,
    "b": 153
  },
  "hsl": {
    "h": 204.733,
    "s": 74.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.48296,
    "c": 0.11194,
    "h": 245.3
  },
  "luminance": 0.11394
}

Semantic roles & 50–950 ramp

primary

#166399

secondary

#C57A46

accent

#8336F1

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #166399

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

Preview Lab → · Contrast checker → · Palette generator →