#1F2D43

#1F2D43

Color Values

HEX

#1F2D43

RGB

31, 45, 67

HSL

216.7, 36.7%, 19.2%

HSV

216.7, 53.7%, 26.3%

CMYK

53.7%, 32.8%, 0.0%, 73.7%

OKLCH

0.2956 0.0446 259.2

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F2D43

#43351F

Analogous

#1F3F43

#231F43

#1F2D43

Triadic

#1F2D43

#431F2D

#2D431F

Split Complementary

#1F2D43

#43231F

#3F431F

Tetradic

#1F2D43

#431F3F

#43351F

#1F4323

Color Blindness Simulation

Original

#1F2D43

Protanopia

#25253E

Deuteranopia

#24233C

Tritanopia

#203939

Achromatopsia

#2C2C2C

CSS Usage

background-color: #1F2D43;
color: #1F2D43;
border-color: #1F2D43;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F5F7FA
100
#E8ECF3
200
#CED8E8
300
#ABBDD8
400
#7E99C3
500
#5175AE
600
#415E8B
700
#344B70
800
#283B57
900
#202D40
950
#141C29

Contrast Checker

Text on white

13.86:1

AA Pass AAA Pass

Text on black

1.51:1

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