#1F5381#1F5381
#1F5381 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.1% C 0.094 H 248.6°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).
Color values
| HEX | #1F5381 |
|---|---|
| RGB | rgb(31, 83, 129) |
| HSL | hsl(208, 61%, 31%) |
| HSV | hsv(208, 76%, 51%) |
| CMYK | cmyk(76%, 35.7%, 0%, 49.4%) |
| CIE-LAB | lab(34.11, -0.41, -30.82) |
| CIE-LCH | lch(34.11, 30.82, 269.24°) |
| OKLab | oklab(43.11% -0.0343 -0.0875) |
| OKLCH | oklch(43.11% 0.094 248.6) |
| XYZ | xyz(7.6193, 8.0619, 21.9192) |
| Luminance | 0.0806 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.26
Deep Sea Blue
#015482
ΔE00 2.58
Dusk Blue
#26538D
ΔE00 2.67
Light Navy Blue
#2E5A88
ΔE00 2.72
Prussian Blue
#004577
ΔE00 4.63
Cobalt (survey)
#1E488F
ΔE00 5.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F5381 #814D1F
analogous
#1F817E #1F5381 #1F2281
triadic
#1F5381 #811F53 #53811F
tetradic
#1F5381 #7E1F81 #814D1F #22811F
square
#1F5381 #7E1F81 #814D1F #22811F
split-complementary
#1F5381 #811F22 #817E1F
monochromatic
#07141E #133350 #1F5381 #2B73B2 #4791D3
Accessibility & contrast
On white
8.04
#1F5381 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.61
#1F5381 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F5381
8.04:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F5381 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F5381 | 1.00 | 8.04 | 2.61 | 8.04 |
| #FFFFFF | 8.04 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.61 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.04 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3E5583
Deuteranopia (green-blind)
#304C80
Tritanopia (blue-blind)
#005E64
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #1f5381; /* rgb */ color: rgb(31, 83, 129); /* oklch */ color: oklch(43.1% 0.094 248.6);
Tailwind
colors: {
custom: {
50: '#6983a6',
500: '#1f5381',
950: '#000000',
},
}SCSS
$custom: #1f5381; $custom-light: #6983a6; $custom-dark: #000000;
JSON
{
"hex": "#1f5381",
"rgb": {
"r": 31,
"g": 83,
"b": 129
},
"hsl": {
"h": 208.163,
"s": 61.25,
"l": 31.373
},
"oklch": {
"l": 0.43109,
"c": 0.09403,
"h": 248.6
},
"luminance": 0.08063
}Semantic roles & 50–950 ramp
primary
#1F5381
secondary
#B47B48
accent
#8F43E4
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A0F
muted
#7A7C7F