#1F4058

#1F4058

Color Values

HEX

#1F4058

RGB

31, 64, 88

HSL

205.3, 47.9%, 23.3%

HSV

205.3, 64.8%, 34.5%

CMYK

64.8%, 27.3%, 0.0%, 65.5%

OKLCH

0.3581 0.057 242.2

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F4058

#58371F

Analogous

#1F5853

#1F2358

#1F4058

Triadic

#1F4058

#581F40

#40581F

Split Complementary

#1F4058

#581F23

#58531F

Tetradic

#1F4058

#531F58

#58371F

#23581F

Color Blindness Simulation

Original

#1F4058

Protanopia

#2D2E52

Deuteranopia

#2B2951

Tritanopia

#214E4D

Achromatopsia

#3B3B3B

CSS Usage

background-color: #1F4058;
color: #1F4058;
border-color: #1F4058;
Nearest Tailwind: Slate 700 #334155

Tailwind Shades

50
#F4F8FA
100
#E6EEF4
200
#CADEEC
300
#A4C6DF
400
#73A8CE
500
#4289BD
600
#356E97
700
#2B5879
800
#21455E
900
#1C3445
950
#11212C

Contrast Checker

Text on white

10.87:1

AA Pass AAA Pass

Text on black

1.93:1

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