#181759#181759
#181759 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.8% C 0.114 H 275.5°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).
Color values
| HEX | #181759 |
|---|---|
| RGB | rgb(24, 23, 89) |
| HSL | hsl(241, 59%, 22%) |
| HSV | hsv(241, 74%, 35%) |
| CMYK | cmyk(73%, 74.2%, 0%, 65.1%) |
| CIE-LAB | lab(12.79, 24.34, -39.43) |
| CIE-LCH | lch(12.79, 46.34, 301.69°) |
| OKLab | oklab(25.84% 0.011 -0.1139) |
| OKLCH | oklch(25.84% 0.114 275.5) |
| XYZ | xyz(2.4857, 1.5280, 9.6132) |
| Luminance | 0.0153 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 4.10
Dark Indigo
#1F0954
ΔE00 4.17
Navy Blue (survey)
#001146
ΔE00 4.28
Night Blue
#040348
ΔE00 5.00
Darkblue (survey)
#030764
ΔE00 5.09
Dark Blue
#00035B
ΔE00 5.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#181759 #585917
analogous
#173759 #181759 #391759
triadic
#181759 #591817 #175918
tetradic
#181759 #591737 #585917 #175939
square
#181759 #591737 #585917 #175939
split-complementary
#181759 #593917 #375917
monochromatic
#070618 #0B0A28 #181759 #25248A #3230BA
Accessibility & contrast
On white
16.08
#181759 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.31
#181759 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #181759
16.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##181759 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##181759 | 1.00 | 16.08 | 1.31 | 16.08 |
| #FFFFFF | 16.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00245B
Deuteranopia (green-blind)
#001E58
Tritanopia (blue-blind)
#002936
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #181759; /* rgb */ color: rgb(24, 23, 89); /* oklch */ color: oklch(25.8% 0.114 275.5);
Tailwind
colors: {
custom: {
50: '#5f5489',
500: '#181759',
950: '#000000',
},
}SCSS
$custom: #181759; $custom-light: #5f5489; $custom-dark: #000000;
JSON
{
"hex": "#181759",
"rgb": {
"r": 24,
"g": 23,
"b": 89
},
"hsl": {
"h": 240.909,
"s": 58.929,
"l": 21.961
},
"oklch": {
"l": 0.25835,
"c": 0.11441,
"h": 275.5
},
"luminance": 0.01528
}Semantic roles & 50–950 ramp
primary
#181759
secondary
#8F903C
accent
#E246E0
background
#F5F4F8
surface
#EAE7F0
border
#C6C3CB
text
#05030B
muted
#79787C