#23203D

#23203D

Color Values

HEX

#23203D

RGB

35, 32, 61

HSL

246.2, 31.2%, 18.2%

HSV

246.2, 47.5%, 23.9%

CMYK

42.6%, 47.5%, 0.0%, 76.1%

OKLCH

0.2624 0.0533 286.9

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#23203D

#3A3D20

Analogous

#202B3D

#31203D

#23203D

Triadic

#23203D

#3D2320

#203D23

Split Complementary

#23203D

#3D3120

#2B3D20

Tetradic

#23203D

#3D202B

#3A3D20

#203D31

Color Blindness Simulation

Original

#23203D

Protanopia

#222236

Deuteranopia

#222234

Tritanopia

#23302F

Achromatopsia

#232323

CSS Usage

background-color: #23203D;
color: #23203D;
border-color: #23203D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F5F9
100
#E9E8F2
200
#D2D0E6
300
#B3AFD5
400
#8983BE
500
#6058A7
600
#4D4686
700
#3D386B
800
#302C54
900
#26233E
950
#181627

Contrast Checker

Text on white

15.61:1

AA Pass AAA Pass

Text on black

1.35:1

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