#1F518E#1F518E
#1F518E is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.5% C 0.114 H 255.3°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).
Color values
| HEX | #1F518E |
|---|---|
| RGB | rgb(31, 81, 142) |
| HSL | hsl(213, 64%, 34%) |
| HSV | hsv(213, 78%, 56%) |
| CMYK | cmyk(78.2%, 43%, 0%, 44.3%) |
| CIE-LAB | lab(34.25, 6.02, -38.57) |
| CIE-LCH | lch(34.25, 39.04, 278.88°) |
| OKLab | oklab(43.46% -0.0289 -0.1103) |
| OKLCH | oklch(43.46% 0.114 255.3) |
| XYZ | xyz(8.3882, 8.1282, 26.7128) |
| Luminance | 0.0813 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 0.81
Light Navy
#155084
ΔE00 2.18
Light Navy Blue
#2E5A88
ΔE00 3.34
Cobalt (survey)
#1E488F
ΔE00 3.42
Denim Blue
#3B5B92
ΔE00 4.33
Twilight Blue
#0A437A
ΔE00 4.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F518E #8E5C1F
analogous
#1F898E #1F518E #251F8E
triadic
#1F518E #8E1F51 #518E1F
tetradic
#1F518E #8E1F89 #8E5C1F #1F8E25
square
#1F518E #8E1F89 #8E5C1F #1F8E25
split-complementary
#1F518E #8E251F #898E1F
monochromatic
#09182A #14345C #1F518E #2A6EC0 #4F8DD9
Accessibility & contrast
On white
8.00
#1F518E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1F518E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F518E
8.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F518E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F518E | 1.00 | 8.00 | 2.63 | 8.00 |
| #FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#335690
Deuteranopia (green-blind)
#204C8D
Tritanopia (blue-blind)
#005F68
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1f518e; /* rgb */ color: rgb(31, 81, 142); /* oklch */ color: oklch(43.5% 0.114 255.3);
Tailwind
colors: {
custom: {
50: '#6c81af',
500: '#1f518e',
950: '#000000',
},
}SCSS
$custom: #1f518e; $custom-light: #6c81af; $custom-dark: #000000;
JSON
{
"hex": "#1f518e",
"rgb": {
"r": 31,
"g": 81,
"b": 142
},
"hsl": {
"h": 212.973,
"s": 64.162,
"l": 33.922
},
"oklch": {
"l": 0.43464,
"c": 0.11404,
"h": 255.3
},
"luminance": 0.08129
}Semantic roles & 50–950 ramp
primary
#1F518E
secondary
#BB8A4D
accent
#9C41E7
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F