#1F4F84#1F4F84
#1F4F84 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.3% C 0.102 H 253.3°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).
Color values
| HEX | #1F4F84 |
|---|---|
| RGB | rgb(31, 79, 132) |
| HSL | hsl(211, 62%, 32%) |
| HSV | hsv(211, 77%, 52%) |
| CMYK | cmyk(76.5%, 40.2%, 0%, 48.2%) |
| CIE-LAB | lab(33.02, 3.38, -34.39) |
| CIE-LCH | lch(33.02, 34.55, 275.61°) |
| OKLab | oklab(42.31% -0.0295 -0.0981) |
| OKLCH | oklch(42.31% 0.102 253.3) |
| XYZ | xyz(7.5244, 7.5484, 22.8857) |
| Luminance | 0.0755 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.41
Dusk Blue
#26538D
ΔE00 1.80
Cobalt (survey)
#1E488F
ΔE00 3.50
Light Navy Blue
#2E5A88
ΔE00 3.73
Prussian Blue
#004577
ΔE00 3.79
Twilight Blue
#0A437A
ΔE00 3.92
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F4F84 #84541F
analogous
#1F8284 #1F4F84 #221F84
triadic
#1F4F84 #841F4F #4F841F
tetradic
#1F4F84 #841F82 #84541F #1F8422
square
#1F4F84 #841F82 #84541F #1F8422
split-complementary
#1F4F84 #84221F #82841F
monochromatic
#081421 #133152 #1F4F84 #2B6DB6 #498BD4
Accessibility & contrast
On white
8.37
#1F4F84 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.51
#1F4F84 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F4F84
8.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F4F84 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F4F84 | 1.00 | 8.37 | 2.51 | 8.37 |
| #FFFFFF | 8.37 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.37 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#365386
Deuteranopia (green-blind)
#264983
Tritanopia (blue-blind)
#005B63
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1f4f84; /* rgb */ color: rgb(31, 79, 132); /* oklch */ color: oklch(42.3% 0.102 253.3);
Tailwind
colors: {
custom: {
50: '#697fa8',
500: '#1f4f84',
950: '#000000',
},
}SCSS
$custom: #1f4f84; $custom-light: #697fa8; $custom-dark: #000000;
JSON
{
"hex": "#1f4f84",
"rgb": {
"r": 31,
"g": 79,
"b": 132
},
"hsl": {
"h": 211.485,
"s": 61.963,
"l": 31.961
},
"oklch": {
"l": 0.42314,
"c": 0.10241,
"h": 253.3
},
"luminance": 0.07549
}Semantic roles & 50–950 ramp
primary
#1F4F84
secondary
#B78248
accent
#9843E5
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A0F
muted
#7A7C7F