#1F5183#1F5183
#1F5183 is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.7% C 0.099 H 251.3°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).
Color values
| HEX | #1F5183 |
|---|---|
| RGB | rgb(31, 81, 131) |
| HSL | hsl(210, 62%, 32%) |
| HSV | hsv(210, 76%, 51%) |
| CMYK | cmyk(76.3%, 38.2%, 0%, 48.6%) |
| CIE-LAB | lab(33.59, 1.67, -32.87) |
| CIE-LCH | lch(33.59, 32.91, 272.91°) |
| OKLab | oklab(42.74% -0.0317 -0.0936) |
| OKLCH | oklch(42.74% 0.099 251.3) |
| XYZ | xyz(7.6027, 7.8140, 22.5759) |
| Luminance | 0.0781 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 0.87
Dusk Blue
#26538D
ΔE00 1.93
Light Navy Blue
#2E5A88
ΔE00 3.11
Deep Sea Blue
#015482
ΔE00 3.57
Prussian Blue
#004577
ΔE00 4.12
Cobalt (survey)
#1E488F
ΔE00 4.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F5183 #83511F
analogous
#1F8383 #1F5183 #1F1F83
triadic
#1F5183 #831F51 #51831F
tetradic
#1F5183 #831F83 #83511F #1F831F
square
#1F5183 #831F83 #83511F #1F831F
split-complementary
#1F5183 #831F1F #83831F
monochromatic
#081420 #133252 #1F5183 #2B70B4 #498ED4
Accessibility & contrast
On white
8.19
#1F5183 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.56
#1F5183 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F5183
8.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F5183 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F5183 | 1.00 | 8.19 | 2.56 | 8.19 |
| #FFFFFF | 8.19 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.56 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.19 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3A5485
Deuteranopia (green-blind)
#2B4B82
Tritanopia (blue-blind)
#005D63
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1f5183; /* rgb */ color: rgb(31, 81, 131); /* oklch */ color: oklch(42.7% 0.099 251.3);
Tailwind
colors: {
custom: {
50: '#6981a7',
500: '#1f5183',
950: '#000000',
},
}SCSS
$custom: #1f5183; $custom-light: #6981a7; $custom-dark: #000000;
JSON
{
"hex": "#1f5183",
"rgb": {
"r": 31,
"g": 81,
"b": 131
},
"hsl": {
"h": 210,
"s": 61.728,
"l": 31.765
},
"oklch": {
"l": 0.42739,
"c": 0.09881,
"h": 251.3
},
"luminance": 0.07815
}Semantic roles & 50–950 ramp
primary
#1F5183
secondary
#B67F48
accent
#9443E5
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A0F
muted
#7A7C7F