#2D307B

#2D307B

Color Values

HEX

#2D307B

RGB

45, 48, 123

HSL

237.7, 46.4%, 32.9%

HSV

237.7, 63.4%, 48.2%

CMYK

63.4%, 61.0%, 0.0%, 51.8%

OKLCH

0.3543 0.125 276.2

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#2D307B

#7B782D

Analogous

#2D577B

#512D7B

#2D307B

Triadic

#2D307B

#7B2D30

#307B2D

Split Complementary

#2D307B

#7B512D

#577B2D

Tetradic

#2D307B

#7B2D57

#7B782D

#2D7B51

Color Blindness Simulation

Original

#2D307B

Protanopia

#2E2E69

Deuteranopia

#2E2E64

Tritanopia

#2D5B57

Achromatopsia

#353535

CSS Usage

background-color: #2D307B;
color: #2D307B;
border-color: #2D307B;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCCEC
300
#A5A8DE
400
#7578CC
500
#4449BB
600
#373A95
700
#2C2F77
800
#22245D
900
#1C1E45
950
#12132B

Contrast Checker

Text on white

11.54:1

AA Pass AAA Pass

Text on black

1.82:1

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