#182A8D#182A8D
#182A8D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.8% C 0.163 H 267.8°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).
Color values
| HEX | #182A8D |
|---|---|
| RGB | rgb(24, 42, 141) |
| HSL | hsl(231, 71%, 32%) |
| HSV | hsv(231, 83%, 55%) |
| CMYK | cmyk(83%, 70.2%, 0%, 44.7%) |
| CIE-LAB | lab(22.90, 31.51, -56.37) |
| CIE-LCH | lch(22.90, 64.58, 299.21°) |
| OKLab | oklab(34.8% -0.0061 -0.1633) |
| OKLCH | oklch(34.8% 0.163 267.8) |
| XYZ | xyz(6.0107, 3.7725, 25.6055) |
| Luminance | 0.0377 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 4.92
Sapphire (survey)
#2138AB
ΔE00 5.47
Midnight Blue
#191970
ΔE00 5.92
Cobalt Blue
#030AA7
ΔE00 7.34
Indigo Blue
#3A18B1
ΔE00 7.82
Darkslateblue
#483D8B
ΔE00 7.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#182A8D #8D7B18
analogous
#18658D #182A8D #40188D
triadic
#182A8D #8D182A #2A8D18
tetradic
#182A8D #8D1865 #8D7B18 #188D40
square
#182A8D #8D1865 #8D7B18 #188D40
split-complementary
#182A8D #8D4018 #658D18
monochromatic
#060B24 #0F1A59 #182A8D #213AC1 #4159DF
Accessibility & contrast
On white
11.97
#182A8D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.75
#182A8D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #182A8D
11.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##182A8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##182A8D | 1.00 | 11.97 | 1.75 | 11.97 |
| #FFFFFF | 11.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.75 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003C90
Deuteranopia (green-blind)
#00318B
Tritanopia (blue-blind)
#004558
Achromatopsia (no color)
#373737
Design tokens & code
CSS
--color: #182a8d; /* rgb */ color: rgb(24, 42, 141); /* oklch */ color: oklch(34.8% 0.163 267.8);
Tailwind
colors: {
custom: {
50: '#6c63af',
500: '#182a8d',
950: '#000000',
},
}SCSS
$custom: #182a8d; $custom-light: #6c63af; $custom-dark: #000000;
JSON
{
"hex": "#182a8d",
"rgb": {
"r": 24,
"g": 42,
"b": 141
},
"hsl": {
"h": 230.769,
"s": 70.909,
"l": 32.353
},
"oklch": {
"l": 0.34801,
"c": 0.16344,
"h": 267.8
},
"luminance": 0.03773
}Semantic roles & 50–950 ramp
primary
#182A8D
secondary
#BFAC42
accent
#D23AEE
background
#F7F5FA
surface
#EDEAF5
border
#C8C6CF
text
#080511
muted
#7B7980