#2D21B4

#2D21B4

Color Values

HEX

#2D21B4

RGB

45, 33, 180

HSL

244.9, 69.0%, 41.8%

HSV

244.9, 81.7%, 70.6%

CMYK

75.0%, 81.7%, 0.0%, 29.4%

OKLCH

0.3897 0.2146 273.6

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#2D21B4

#A8B421

Analogous

#215FB4

#7721B4

#2D21B4

Triadic

#2D21B4

#B42D21

#21B42D

Split Complementary

#2D21B4

#B47721

#5FB421

Tetradic

#2D21B4

#B4215F

#A8B421

#21B477

Color Blindness Simulation

Original

#2D21B4

Protanopia

#282890

Deuteranopia

#282988

Tritanopia

#2C746E

Achromatopsia

#2E2E2E

CSS Usage

background-color: #2D21B4;
color: #2D21B4;
border-color: #2D21B4;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F4F3FC
100
#E4E3F8
200
#C7C3F4
300
#9E98EC
400
#6A60E2
500
#3628D7
600
#2B20AC
700
#22198A
800
#1B146C
900
#17124F
950
#0F0C32

Contrast Checker

Text on white

10.56:1

AA Pass AAA Pass

Text on black

1.99:1

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