#1F3D64#1F3D64
#1F3D64 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.8% C 0.077 H 255.8°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).
Color values
| HEX | #1F3D64 |
|---|---|
| RGB | rgb(31, 61, 100) |
| HSL | hsl(214, 53%, 26%) |
| HSV | hsv(214, 69%, 39%) |
| CMYK | cmyk(69%, 39%, 0%, 60.8%) |
| CIE-LAB | lab(25.41, 2.84, -26.31) |
| CIE-LCH | lch(25.41, 26.46, 276.17°) |
| OKLab | oklab(35.75% -0.019 -0.0747) |
| OKLCH | oklch(35.75% 0.077 255.8) |
| XYZ | xyz(4.5332, 4.5485, 12.6932) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Marine Blue
#01386A
ΔE00 2.93
Twilight Blue
#0A437A
ΔE00 4.03
Darkish Blue
#014182
ΔE00 4.58
Prussian Blue
#004577
ΔE00 4.83
Marine
#042E60
ΔE00 4.94
Cobalt (survey)
#1E488F
ΔE00 6.43
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F3D64 #64461F
analogous
#1F5F64 #1F3D64 #231F64
triadic
#1F3D64 #641F3D #3D641F
tetradic
#1F3D64 #641F5F #64461F #1F6423
square
#1F3D64 #641F5F #64461F #1F6423
split-complementary
#1F3D64 #64231F #5F641F
monochromatic
#070E17 #112135 #1F3D64 #2D5993 #3C76C1
Accessibility & contrast
On white
11.00
#1F3D64 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#1F3D64 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F3D64
11.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F3D64 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F3D64 | 1.00 | 11.00 | 1.91 | 11.00 |
| #FFFFFF | 11.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2C4066
Deuteranopia (green-blind)
#223963
Tritanopia (blue-blind)
#00464B
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #1f3d64; /* rgb */ color: rgb(31, 61, 100); /* oklch */ color: oklch(35.8% 0.077 255.8);
Tailwind
colors: {
custom: {
50: '#637290',
500: '#1f3d64',
950: '#000000',
},
}SCSS
$custom: #1f3d64; $custom-light: #637290; $custom-dark: #000000;
JSON
{
"hex": "#1f3d64",
"rgb": {
"r": 31,
"g": 61,
"b": 100
},
"hsl": {
"h": 213.913,
"s": 52.672,
"l": 25.686
},
"oklch": {
"l": 0.35755,
"c": 0.07707,
"h": 255.8
},
"luminance": 0.04549
}Semantic roles & 50–950 ramp
primary
#1F3D64
secondary
#987546
accent
#9D4CDC
background
#F6F6F8
surface
#EBECF0
border
#C6C7CB
text
#06070C
muted
#7A7A7D