#1F5B89#1F5B89
#1F5B89 is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.6% C 0.097 H 245.6°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).
Color values
| HEX | #1F5B89 |
|---|---|
| RGB | rgb(31, 91, 137) |
| HSL | hsl(206, 63%, 33%) |
| HSV | hsv(206, 77%, 54%) |
| CMYK | cmyk(77.4%, 33.6%, 0%, 46.3%) |
| CIE-LAB | lab(37.08, -2.41, -31.03) |
| CIE-LCH | lch(37.08, 31.13, 265.56°) |
| OKLab | oklab(45.58% -0.0399 -0.0881) |
| OKLCH | oklch(45.58% 0.097 245.6) |
| XYZ | xyz(8.8198, 9.5786, 25.0461) |
| Luminance | 0.0958 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy Blue
#2E5A88
ΔE00 2.39
Deep Sea Blue
#015482
ΔE00 2.80
Light Navy
#155084
ΔE00 3.94
Denim (survey)
#3B638C
ΔE00 4.01
Dusk Blue
#26538D
ΔE00 4.41
Ugly Blue
#31668A
ΔE00 4.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F5B89 #894D1F
analogous
#1F8982 #1F5B89 #1F2689
triadic
#1F5B89 #891F5B #5B891F
tetradic
#1F5B89 #821F89 #894D1F #26891F
square
#1F5B89 #821F89 #894D1F #26891F
split-complementary
#1F5B89 #891F26 #89821F
monochromatic
#081925 #143A57 #1F5B89 #2A7CBB #4C9AD6
Accessibility & contrast
On white
7.20
#1F5B89 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.92
#1F5B89 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F5B89
7.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F5B89 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F5B89 | 1.00 | 7.20 | 2.92 | 7.20 |
| #FFFFFF | 7.20 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.92 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.20 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#465D8B
Deuteranopia (green-blind)
#375388
Tritanopia (blue-blind)
#00666B
Achromatopsia (no color)
#575757
Design tokens & code
CSS
--color: #1f5b89; /* rgb */ color: rgb(31, 91, 137); /* oklch */ color: oklch(45.6% 0.097 245.6);
Tailwind
colors: {
custom: {
50: '#6b89ab',
500: '#1f5b89',
950: '#000000',
},
}SCSS
$custom: #1f5b89; $custom-light: #6b89ab; $custom-dark: #000000;
JSON
{
"hex": "#1f5b89",
"rgb": {
"r": 31,
"g": 91,
"b": 137
},
"hsl": {
"h": 206.038,
"s": 63.095,
"l": 32.941
},
"oklch": {
"l": 0.45584,
"c": 0.09669,
"h": 245.6
},
"luminance": 0.0958
}Semantic roles & 50–950 ramp
primary
#1F5B89
secondary
#B97B4B
accent
#8942E6
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F