#210A3F

#210A3F

Color Values

HEX

#210A3F

RGB

33, 10, 63

HSL

266.0, 72.6%, 14.3%

HSV

266.0, 84.1%, 24.7%

CMYK

47.6%, 84.1%, 0.0%, 75.3%

OKLCH

0.2192 0.0938 297.9

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#210A3F

#283F0A

Analogous

#0A0E3F

#3B0A3F

#210A3F

Triadic

#210A3F

#3F210A

#0A3F21

Split Complementary

#210A3F

#3F3B0A

#0E3F0A

Tetradic

#210A3F

#3F0A0E

#283F0A

#0A3F3B

Color Blindness Simulation

Original

#210A3F

Protanopia

#171732

Deuteranopia

#181A2F

Tritanopia

#202826

Achromatopsia

#131313

CSS Usage

background-color: #210A3F;
color: #210A3F;
border-color: #210A3F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F3FC
100
#ECE2F8
200
#D8C1F5
300
#BC95EE
400
#985CE5
500
#7323DC
600
#5C1CB0
700
#4A168D
800
#3A116E
900
#2C1150
950
#1C0B33

Contrast Checker

Text on white

17.8:1

AA Pass AAA Pass

Text on black

1.18:1

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