#03070B

#03070B

Color Values

HEX

#03070B

RGB

3, 7, 11

HSL

210.0, 57.1%, 2.7%

HSV

210.0, 72.7%, 4.3%

CMYK

72.7%, 36.4%, 0.0%, 95.7%

OKLCH

0.1244 0.014 239.9

Properties

Cool Dark Nearest: RAL 9005 Jet Black

Color Harmonies

Complementary

#03070B

#0B0703

Analogous

#030B0B

#03030B

#03070B

Triadic

#03070B

#0B0307

#070B03

Split Complementary

#03070B

#0B0303

#0B0B03

Tetradic

#03070B

#0B030B

#0B0703

#030B03

Color Blindness Simulation

Original

#03070B

Protanopia

#05050A

Deuteranopia

#04040A

Tritanopia

#030909

Achromatopsia

#060606

CSS Usage

background-color: #03070B;
color: #03070B;
border-color: #03070B;
Nearest Tailwind: Zinc 950 #09090B

Tailwind Shades

50
#F4F7FB
100
#E4EDF6
200
#C7DBF0
300
#9FC2E5
400
#6BA1D7
500
#3780C8
600
#2C66A0
700
#235280
800
#1B4064
900
#183049
950
#0F1F2E

Contrast Checker

Text on white

20.21:1

AA Pass AAA Pass

Text on black

1.04:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026