#18315B#18315B
#18315B is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.8% C 0.081 H 260.1°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).
Color values
| HEX | #18315B |
|---|---|
| RGB | rgb(24, 49, 91) |
| HSL | hsl(218, 58%, 23%) |
| HSV | hsv(218, 74%, 36%) |
| CMYK | cmyk(73.6%, 46.2%, 0%, 64.3%) |
| CIE-LAB | lab(20.62, 6.30, -28.07) |
| CIE-LCH | lch(20.62, 28.77, 282.66°) |
| OKLab | oklab(31.76% -0.0139 -0.0802) |
| OKLCH | oklch(31.76% 0.081 260.1) |
| XYZ | xyz(3.3627, 3.1458, 10.3255) |
| Luminance | 0.0315 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 2.22
Navy Blue
#1B2A4A
ΔE00 3.81
Marine Blue
#01386A
ΔE00 4.25
Twilight Blue
#0A437A
ΔE00 7.38
Darkish Blue
#014182
ΔE00 7.43
Prussian Blue
#004577
ΔE00 8.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#18315B #5B4218
analogous
#18525B #18315B #20185B
triadic
#18315B #5B1831 #315B18
tetradic
#18315B #5B1852 #5B4218 #185B20
square
#18315B #5B1852 #5B4218 #185B20
split-complementary
#18315B #5B2018 #525B18
monochromatic
#060D18 #0B172B #18315B #254B8B #3265BC
Accessibility & contrast
On white
12.89
#18315B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.63
#18315B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #18315B
12.89:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##18315B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##18315B | 1.00 | 12.89 | 1.63 | 12.89 |
| #FFFFFF | 12.89 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.89 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1D355D
Deuteranopia (green-blind)
#122F5A
Tritanopia (blue-blind)
#003B41
Achromatopsia (no color)
#323232
Design tokens & code
CSS
--color: #18315b; /* rgb */ color: rgb(24, 49, 91); /* oklch */ color: oklch(31.8% 0.081 260.1);
Tailwind
colors: {
custom: {
50: '#5e688a',
500: '#18315b',
950: '#000000',
},
}SCSS
$custom: #18315b; $custom-light: #5e688a; $custom-dark: #000000;
JSON
{
"hex": "#18315b",
"rgb": {
"r": 24,
"g": 49,
"b": 91
},
"hsl": {
"h": 217.612,
"s": 58.261,
"l": 22.549
},
"oklch": {
"l": 0.31762,
"c": 0.08137,
"h": 260.1
},
"luminance": 0.03146
}Semantic roles & 50–950 ramp
primary
#18315B
secondary
#92723D
accent
#A846E1
background
#F5F6F8
surface
#E9EBF0
border
#C5C6CB
text
#05060B
muted
#797A7C