#100F4A#100F4A
#100F4A is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 22.1% C 0.105 H 274.4°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).
Color values
| HEX | #100F4A |
|---|---|
| RGB | rgb(16, 15, 74) |
| HSL | hsl(241, 66%, 17%) |
| HSV | hsv(241, 80%, 29%) |
| CMYK | cmyk(78.4%, 79.7%, 0%, 71%) |
| CIE-LAB | lab(8.53, 22.93, -36.16) |
| CIE-LCH | lch(8.53, 42.82, 302.38°) |
| OKLab | oklab(22.12% 0.008 -0.1046) |
| OKLCH | oklch(22.12% 0.105 274.4) |
| XYZ | xyz(1.6201, 0.9461, 6.5745) |
| Luminance | 0.0095 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 2.76
Night Blue
#040348
ΔE00 2.88
Dark Indigo
#1F0954
ΔE00 3.90
Midnight Blue (survey)
#020035
ΔE00 4.61
Dark Navy
#000435
ΔE00 5.01
Very Dark Blue
#000133
ΔE00 5.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#100F4A #494A0F
analogous
#0F2C4A #100F4A #2E0F4A
triadic
#100F4A #4A100F #0F4A10
tetradic
#100F4A #4A0F2C #494A0F #0F4A2E
square
#100F4A #4A0F2C #494A0F #0F4A2E
split-complementary
#100F4A #4A2E0F #2C4A0F
monochromatic
#060519 #060519 #100F4A #1B197D #2624B0
Accessibility & contrast
On white
17.66
#100F4A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.19
#100F4A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #100F4A
17.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##100F4A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##100F4A | 1.00 | 17.66 | 1.19 | 17.66 |
| #FFFFFF | 17.66 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.19 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.66 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001B4C
Deuteranopia (green-blind)
#001649
Tritanopia (blue-blind)
#00202B
Achromatopsia (no color)
#191919
Design tokens & code
CSS
--color: #100f4a; /* rgb */ color: rgb(16, 15, 74); /* oklch */ color: oklch(22.1% 0.105 274.4);
Tailwind
colors: {
custom: {
50: '#594e7d',
500: '#100f4a',
950: '#000000',
},
}SCSS
$custom: #100f4a; $custom-light: #594e7d; $custom-dark: #000000;
JSON
{
"hex": "#100f4a",
"rgb": {
"r": 16,
"g": 15,
"b": 74
},
"hsl": {
"h": 241.017,
"s": 66.292,
"l": 17.451
},
"oklch": {
"l": 0.22121,
"c": 0.10487,
"h": 274.4
},
"luminance": 0.00946
}Semantic roles & 50–950 ramp
primary
#100F4A
secondary
#838430
accent
#E93FE6
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04010A
muted
#79777C