#180E51#180E51
#180E51 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.5% C 0.114 H 279.8°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).
Color values
| HEX | #180E51 |
|---|---|
| RGB | rgb(24, 14, 81) |
| HSL | hsl(249, 71%, 19%) |
| HSV | hsv(249, 83%, 32%) |
| CMYK | cmyk(70.4%, 82.7%, 0%, 68.2%) |
| CIE-LAB | lab(9.82, 27.19, -38.87) |
| CIE-LCH | lch(9.82, 47.44, 304.97°) |
| OKLab | oklab(23.45% 0.0193 -0.1122) |
| OKLCH | oklch(23.45% 0.114 279.8) |
| XYZ | xyz(2.0185, 1.1022, 7.8894) |
| Luminance | 0.0110 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 2.00
Night Blue
#040348
ΔE00 3.03
Dark Blue
#00035B
ΔE00 4.16
Darkblue (survey)
#030764
ΔE00 4.55
Navy Blue (survey)
#001146
ΔE00 4.60
Midnight Blue
#191970
ΔE00 5.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#180E51 #47510E
analogous
#0E2551 #180E51 #390E51
triadic
#180E51 #51180E #0E5118
tetradic
#180E51 #510E25 #47510E #0E5139
square
#180E51 #510E25 #47510E #0E5139
split-complementary
#180E51 #51390E #25510E
monochromatic
#08051A #09051D #180E51 #271785 #3720B9
Accessibility & contrast
On white
17.21
#180E51 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.22
#180E51 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #180E51
17.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##180E51 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##180E51 | 1.00 | 17.21 | 1.22 | 17.21 |
| #FFFFFF | 17.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.22 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001E53
Deuteranopia (green-blind)
#001850
Tritanopia (blue-blind)
#00212F
Achromatopsia (no color)
#1B1B1B
Design tokens & code
CSS
--color: #180e51; /* rgb */ color: rgb(24, 14, 81); /* oklch */ color: oklch(23.5% 0.114 279.8);
Tailwind
colors: {
custom: {
50: '#5e4e83',
500: '#180e51',
950: '#000000',
},
}SCSS
$custom: #180e51; $custom-light: #5e4e83; $custom-dark: #000000;
JSON
{
"hex": "#180e51",
"rgb": {
"r": 24,
"g": 14,
"b": 81
},
"hsl": {
"h": 248.955,
"s": 70.526,
"l": 18.627
},
"oklch": {
"l": 0.23451,
"c": 0.11386,
"h": 279.8
},
"luminance": 0.01102
}Semantic roles & 50–950 ramp
primary
#180E51
secondary
#7E8C2F
accent
#ED3AD3
background
#F5F4F8
surface
#EAE7EF
border
#C6C3CA
text
#05010B
muted
#79777C