#101539#101539
#101539 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.6% C 0.070 H 273.2°. Best body text is #FFFFFF at 17.67:1 contrast (WCAG AA passes).
Color values
| HEX | #101539 |
|---|---|
| RGB | rgb(16, 21, 57) |
| HSL | hsl(233, 56%, 14%) |
| HSV | hsv(233, 72%, 22%) |
| CMYK | cmyk(71.9%, 63.2%, 0%, 77.6%) |
| CIE-LAB | lab(8.50, 11.48, -24.18) |
| CIE-LCH | lch(8.50, 26.77, 295.40°) |
| OKLab | oklab(21.56% 0.0038 -0.0694) |
| OKLCH | oklch(21.56% 0.07 273.2) |
| XYZ | xyz(1.2201, 0.9418, 3.9876) |
| Luminance | 0.0094 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 3.00
Midnight
#03012D
ΔE00 3.92
Dark Navy Blue
#00022E
ΔE00 4.00
Dark Navy
#000435
ΔE00 4.25
Very Dark Blue
#000133
ΔE00 4.52
Navy Blue (survey)
#001146
ΔE00 4.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#101539 #393410
analogous
#102A39 #101539 #201039
triadic
#101539 #391015 #153910
tetradic
#101539 #39102A #393410 #103920
square
#101539 #39102A #393410 #103920
split-complementary
#101539 #392010 #2A3910
monochromatic
#070918 #070918 #101539 #1D2769 #2B3899
Accessibility & contrast
On white
17.67
#101539 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.19
#101539 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #101539
17.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##101539 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##101539 | 1.00 | 17.67 | 1.19 | 17.67 |
| #FFFFFF | 17.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.19 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#011A3A
Deuteranopia (green-blind)
#001738
Tritanopia (blue-blind)
#001D24
Achromatopsia (no color)
#181818
Design tokens & code
CSS
--color: #101539; /* rgb */ color: rgb(16, 21, 57); /* oklch */ color: oklch(21.6% 0.070 273.2);
Tailwind
colors: {
custom: {
50: '#535270',
500: '#101539',
950: '#000000',
},
}SCSS
$custom: #101539; $custom-light: #535270; $custom-dark: #000000;
JSON
{
"hex": "#101539",
"rgb": {
"r": 16,
"g": 21,
"b": 57
},
"hsl": {
"h": 232.683,
"s": 56.164,
"l": 14.314
},
"oklch": {
"l": 0.21562,
"c": 0.06951,
"h": 273.2
},
"luminance": 0.00942
}Semantic roles & 50–950 ramp
primary
#101539
secondary
#736B32
accent
#CD48DF
background
#F4F4F6
surface
#E8E7EC
border
#C4C3C7
text
#030207
muted
#78787A