#1F4F8D#1F4F8D
#1F4F8D is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.9% C 0.115 H 256.3°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).
Color values
| HEX | #1F4F8D |
|---|---|
| RGB | rgb(31, 79, 141) |
| HSL | hsl(214, 64%, 34%) |
| HSV | hsv(214, 78%, 55%) |
| CMYK | cmyk(78%, 44%, 0%, 44.7%) |
| CIE-LAB | lab(33.57, 6.95, -39.04) |
| CIE-LCH | lch(33.57, 39.65, 280.10°) |
| OKLab | oklab(42.92% -0.0273 -0.1117) |
| OKLCH | oklch(42.92% 0.115 256.3) |
| XYZ | xyz(8.1670, 7.8054, 26.2703) |
| Luminance | 0.0781 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.33
Light Navy
#155084
ΔE00 2.46
Cobalt (survey)
#1E488F
ΔE00 2.71
Light Navy Blue
#2E5A88
ΔE00 3.97
Twilight Blue
#0A437A
ΔE00 4.35
Darkish Blue
#014182
ΔE00 4.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F4F8D #8D5D1F
analogous
#1F868D #1F4F8D #261F8D
triadic
#1F4F8D #8D1F4F #4F8D1F
tetradic
#1F4F8D #8D1F86 #8D5D1F #1F8D26
square
#1F4F8D #8D1F86 #8D5D1F #1F8D26
split-complementary
#1F4F8D #8D261F #868D1F
monochromatic
#091729 #14335B #1F4F8D #2A6BBF #4E8AD8
Accessibility & contrast
On white
8.20
#1F4F8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.56
#1F4F8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F4F8D
8.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F4F8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F4F8D | 1.00 | 8.20 | 2.56 | 8.20 |
| #FFFFFF | 8.20 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.56 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.20 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#30548F
Deuteranopia (green-blind)
#1C4A8C
Tritanopia (blue-blind)
#005E67
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1f4f8d; /* rgb */ color: rgb(31, 79, 141); /* oklch */ color: oklch(42.9% 0.115 256.3);
Tailwind
colors: {
custom: {
50: '#6b7faf',
500: '#1f4f8d',
950: '#000000',
},
}SCSS
$custom: #1f4f8d; $custom-light: #6b7faf; $custom-dark: #000000;
JSON
{
"hex": "#1f4f8d",
"rgb": {
"r": 31,
"g": 79,
"b": 141
},
"hsl": {
"h": 213.818,
"s": 63.953,
"l": 33.725
},
"oklch": {
"l": 0.4292,
"c": 0.11501,
"h": 256.3
},
"luminance": 0.07806
}Semantic roles & 50–950 ramp
primary
#1F4F8D
secondary
#BB8B4D
accent
#9E41E7
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F