#151B4A#151B4A
#151B4A is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.087 H 272.9°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).
Color values
| HEX | #151B4A |
|---|---|
| RGB | rgb(21, 27, 74) |
| HSL | hsl(233, 56%, 19%) |
| HSV | hsv(233, 72%, 29%) |
| CMYK | cmyk(71.6%, 63.5%, 0%, 71%) |
| CIE-LAB | lab(12.21, 15.00, -30.14) |
| CIE-LCH | lch(12.21, 33.67, 296.45°) |
| OKLab | oklab(24.9% 0.0044 -0.0867) |
| OKLCH | oklch(24.9% 0.087 272.9) |
| XYZ | xyz(1.9368, 1.4375, 6.6526) |
| Luminance | 0.0144 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 3.39
Navy Blue (survey)
#001146
ΔE00 3.49
Dark Navy
#000435
ΔE00 5.58
Very Dark Blue
#000133
ΔE00 6.02
Midnight Blue (survey)
#020035
ΔE00 6.04
Navy Blue
#1B2A4A
ΔE00 6.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#151B4A #4A4415
analogous
#15354A #151B4A #29154A
triadic
#151B4A #4A151B #1B4A15
tetradic
#151B4A #4A1535 #4A4415 #154A29
square
#151B4A #4A1535 #4A4415 #154A29
split-complementary
#151B4A #4A2915 #354A15
monochromatic
#070918 #070A1A #151B4A #232C7A #303EA9
Accessibility & contrast
On white
16.31
#151B4A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.29
#151B4A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #151B4A
16.31:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##151B4A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##151B4A | 1.00 | 16.31 | 1.29 | 16.31 |
| #FFFFFF | 16.31 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.29 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.31 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00224C
Deuteranopia (green-blind)
#001E49
Tritanopia (blue-blind)
#00262F
Achromatopsia (no color)
#202020
Design tokens & code
CSS
--color: #151b4a; /* rgb */ color: rgb(21, 27, 74); /* oklch */ color: oklch(24.9% 0.087 272.9);
Tailwind
colors: {
custom: {
50: '#5a577d',
500: '#151b4a',
950: '#000000',
},
}SCSS
$custom: #151b4a; $custom-light: #5a577d; $custom-dark: #000000;
JSON
{
"hex": "#151b4a",
"rgb": {
"r": 21,
"g": 27,
"b": 74
},
"hsl": {
"h": 233.208,
"s": 55.789,
"l": 18.627
},
"oklch": {
"l": 0.24901,
"c": 0.08682,
"h": 272.9
},
"luminance": 0.01438
}Semantic roles & 50–950 ramp
primary
#151B4A
secondary
#827A39
accent
#CE49DF
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#040309
muted
#79787B