#19387B#19387B
#19387B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.0% C 0.120 H 263.1°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).
Color values
| HEX | #19387B |
|---|---|
| RGB | rgb(25, 56, 123) |
| HSL | hsl(221, 66%, 29%) |
| HSV | hsv(221, 80%, 48%) |
| CMYK | cmyk(79.7%, 54.5%, 0%, 51.8%) |
| CIE-LAB | lab(25.15, 14.71, -41.42) |
| CIE-LCH | lch(25.15, 43.96, 289.55°) |
| OKLab | oklab(35.99% -0.0145 -0.1193) |
| OKLCH | oklch(35.99% 0.12 263.1) |
| XYZ | xyz(5.3889, 4.4645, 19.3128) |
| Luminance | 0.0447 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 4.19
Darkish Blue
#014182
ΔE00 4.31
Marine
#042E60
ΔE00 4.82
Twilight Blue
#0A437A
ΔE00 5.20
Cobalt (survey)
#1E488F
ΔE00 5.53
Prussian Blue
#004577
ΔE00 6.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#19387B #7B5C19
analogous
#19697B #19387B #2B197B
triadic
#19387B #7B1938 #387B19
tetradic
#19387B #7B1969 #7B5C19 #197B2B
square
#19387B #7B1969 #7B5C19 #197B2B
split-complementary
#19387B #7B2B19 #697B19
monochromatic
#050C19 #0F2148 #19387B #234FAE #386AD7
Accessibility & contrast
On white
11.09
#19387B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.89
#19387B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #19387B
11.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##19387B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##19387B | 1.00 | 11.09 | 1.89 | 11.09 |
| #FFFFFF | 11.09 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.89 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.09 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#08407D
Deuteranopia (green-blind)
#00377A
Tritanopia (blue-blind)
#004854
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #19387b; /* rgb */ color: rgb(25, 56, 123); /* oklch */ color: oklch(36.0% 0.120 263.1);
Tailwind
colors: {
custom: {
50: '#666ea2',
500: '#19387b',
950: '#000000',
},
}SCSS
$custom: #19387b; $custom-light: #666ea2; $custom-dark: #000000;
JSON
{
"hex": "#19387b",
"rgb": {
"r": 25,
"g": 56,
"b": 123
},
"hsl": {
"h": 221.02,
"s": 66.216,
"l": 29.02
},
"oklch": {
"l": 0.35987,
"c": 0.12018,
"h": 263.1
},
"luminance": 0.04465
}Semantic roles & 50–950 ramp
primary
#19387B
secondary
#AF8C40
accent
#B33FE9
background
#F6F6FA
surface
#EBEBF3
border
#C6C6CD
text
#07070F
muted
#7A7A7F