#1F4F69#1F4F69
#1F4F69 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.7% C 0.067 H 235.6°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).
Color values
| HEX | #1F4F69 |
|---|---|
| RGB | rgb(31, 79, 105) |
| HSL | hsl(201, 54%, 27%) |
| HSV | hsv(201, 70%, 41%) |
| CMYK | cmyk(70.5%, 24.8%, 0%, 58.8%) |
| CIE-LAB | lab(31.58, -7.02, -19.82) |
| CIE-LCH | lch(31.58, 21.02, 250.49°) |
| OKLab | oklab(40.71% -0.0382 -0.0556) |
| OKLCH | oklch(40.71% 0.067 235.6) |
| XYZ | xyz(5.9099, 6.9026, 14.3827) |
| Luminance | 0.0690 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 3.21
Dark Grey Blue
#29465B
ΔE00 4.10
Deep Sea Blue
#015482
ΔE00 5.36
Light Navy
#155084
ΔE00 6.69
Dark Blue Grey
#1F3B4D
ΔE00 7.06
Prussian Blue
#004577
ΔE00 7.13
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F4F69 #69391F
analogous
#1F695E #1F4F69 #1F2A69
triadic
#1F4F69 #691F4F #4F691F
tetradic
#1F4F69 #5E1F69 #69391F #2A691F
square
#1F4F69 #5E1F69 #69391F #2A691F
split-complementary
#1F4F69 #691F2A #695E1F
monochromatic
#071218 #112B3A #1F4F69 #2D7398 #3D96C6
Accessibility & contrast
On white
8.82
#1F4F69 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#1F4F69 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F4F69
8.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F4F69 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F4F69 | 1.00 | 8.82 | 2.38 | 8.82 |
| #FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.82 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#434E6A
Deuteranopia (green-blind)
#384769
Tritanopia (blue-blind)
#005658
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #1f4f69; /* rgb */ color: rgb(31, 79, 105); /* oklch */ color: oklch(40.7% 0.067 235.6);
Tailwind
colors: {
custom: {
50: '#648094',
500: '#1f4f69',
950: '#000000',
},
}SCSS
$custom: #1f4f69; $custom-light: #648094; $custom-dark: #000000;
JSON
{
"hex": "#1f4f69",
"rgb": {
"r": 31,
"g": 79,
"b": 105
},
"hsl": {
"h": 201.081,
"s": 54.412,
"l": 26.667
},
"oklch": {
"l": 0.40708,
"c": 0.06747,
"h": 235.6
},
"luminance": 0.06903
}Semantic roles & 50–950 ramp
primary
#1F4F69
secondary
#9D6547
accent
#7E4ADE
background
#F6F7F9
surface
#EBEEF1
border
#C6C9CB
text
#060A0D
muted
#7A7C7E