#1B646D

#1B646D

Color Values

HEX

#1B646D

RGB

27, 100, 109

HSL

186.6, 60.3%, 26.7%

HSV

186.6, 75.2%, 42.7%

CMYK

75.2%, 8.3%, 0.0%, 57.3%

OKLCH

0.4639 0.0702 207.1

Properties

Cool Dark Nearest: RAL 5021 Water Blue

Color Harmonies

Complementary

#1B646D

#6D241B

Analogous

#1B6D4D

#1B3B6D

#1B646D

Triadic

#1B646D

#6D1B64

#646D1B

Split Complementary

#1B646D

#6D1B3B

#6D4D1B

Tetradic

#1B646D

#4D1B6D

#6D241B

#3B6D1B

Color Blindness Simulation

Original

#1B646D

Protanopia

#3B3B6B

Deuteranopia

#36316A

Tritanopia

#1F6969

Achromatopsia

#555555

CSS Usage

background-color: #1B646D;
color: #1B646D;
border-color: #1B646D;
Nearest Tailwind: Cyan 800 #155E75

Tailwind Shades

50
#F3FAFB
100
#E4F4F6
200
#C6ECF1
300
#9DDFE7
400
#68CDDA
500
#33BBCC
600
#2896A4
700
#207883
800
#195E66
900
#16454B
950
#0E2C2F

Contrast Checker

Text on white

6.8:1

AA Pass AAA Fail

Text on black

3.09:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026