#101559#101559
#101559 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.119 H 270.9°. Best body text is #FFFFFF at 16.49:1 contrast (WCAG AA passes).
Color values
| HEX | #101559 |
|---|---|
| RGB | rgb(16, 21, 89) |
| HSL | hsl(236, 70%, 21%) |
| HSV | hsv(236, 82%, 35%) |
| CMYK | cmyk(82%, 76.4%, 0%, 65.1%) |
| CIE-LAB | lab(11.74, 24.73, -41.17) |
| CIE-LCH | lch(11.74, 48.02, 300.99°) |
| OKLab | oklab(24.94% 0.0019 -0.1192) |
| OKLCH | oklch(24.94% 0.119 270.9) |
| XYZ | xyz(2.2844, 1.3675, 9.5928) |
| Luminance | 0.0137 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 3.89
Midnight Blue
#191970
ΔE00 4.03
Dark Indigo
#1F0954
ΔE00 4.33
Night Blue
#040348
ΔE00 4.51
Darkblue (survey)
#030764
ΔE00 4.51
Dark Blue
#00035B
ΔE00 4.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#101559 #595410
analogous
#103959 #101559 #2F1059
triadic
#101559 #591015 #155910
tetradic
#101559 #591039 #595410 #10592F
square
#101559 #591039 #595410 #10592F
split-complementary
#101559 #592F10 #395910
monochromatic
#05061A #070925 #101559 #19218D #232DC1
Accessibility & contrast
On white
16.49
#101559 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.27
#101559 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #101559
16.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##101559 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##101559 | 1.00 | 16.49 | 1.27 | 16.49 |
| #FFFFFF | 16.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.27 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00235B
Deuteranopia (green-blind)
#001B58
Tritanopia (blue-blind)
#002835
Achromatopsia (no color)
#1F1F1F
Design tokens & code
CSS
--color: #101559; /* rgb */ color: rgb(16, 21, 89); /* oklch */ color: oklch(24.9% 0.119 270.9);
Tailwind
colors: {
custom: {
50: '#5d5289',
500: '#101559',
950: '#000000',
},
}SCSS
$custom: #101559; $custom-light: #5d5289; $custom-dark: #000000;
JSON
{
"hex": "#101559",
"rgb": {
"r": 16,
"g": 21,
"b": 89
},
"hsl": {
"h": 235.89,
"s": 69.524,
"l": 20.588
},
"oklch": {
"l": 0.24937,
"c": 0.11918,
"h": 270.9
},
"luminance": 0.01368
}Semantic roles & 50–950 ramp
primary
#101559
secondary
#928C33
accent
#E03BEC
background
#F5F4F8
surface
#E9E7F0
border
#C5C3CB
text
#05020B
muted
#79787C