#01172B#01172B
#01172B is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 19.9% C 0.050 H 247.2°. Best body text is #FFFFFF at 18.12:1 contrast (WCAG AA passes).
Color values
| HEX | #01172B |
|---|---|
| RGB | rgb(1, 23, 43) |
| HSL | hsl(209, 95%, 9%) |
| HSV | hsv(209, 98%, 17%) |
| CMYK | cmyk(97.7%, 46.5%, 0%, 83.1%) |
| CIE-LAB | lab(7.17, 0.02, -16.12) |
| CIE-LCH | lch(7.17, 16.12, 270.07°) |
| OKLab | oklab(19.9% -0.0194 -0.0462) |
| OKLCH | oklch(19.9% 0.05 247.2) |
| XYZ | xyz(0.7548, 0.7936, 2.3984) |
| Luminance | 0.0079 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark
#1B2431
ΔE00 5.84
Navy (survey)
#01153E
ΔE00 7.78
Navy Blue
#1B2A4A
ΔE00 8.28
Navy Blue (survey)
#001146
ΔE00 9.00
Dark Navy Blue
#00022E
ΔE00 9.15
Dark Navy
#000435
ΔE00 9.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#01172B #2B1501
analogous
#012B2A #01172B #01022B
triadic
#01172B #2B0117 #172B01
tetradic
#01172B #2A012B #2B1501 #022B01
square
#01172B #2A012B #2B1501 #022B01
split-complementary
#01172B #2B0102 #2B2A01
monochromatic
#01101E #01101E #01172B #023767 #0457A3
Accessibility & contrast
On white
18.12
#01172B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.16
#01172B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #01172B
18.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##01172B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##01172B | 1.00 | 18.12 | 1.16 | 18.12 |
| #FFFFFF | 18.12 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.16 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 18.12 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0D182C
Deuteranopia (green-blind)
#07142B
Tritanopia (blue-blind)
#001C1E
Achromatopsia (no color)
#161616
Design tokens & code
CSS
--color: #01172b; /* rgb */ color: rgb(1, 23, 43); /* oklch */ color: oklch(19.9% 0.050 247.2);
Tailwind
colors: {
custom: {
50: '#485364',
500: '#01172b',
950: '#000000',
},
}SCSS
$custom: #01172b; $custom-light: #485364; $custom-dark: #000000;
JSON
{
"hex": "#01172b",
"rgb": {
"r": 1,
"g": 23,
"b": 43
},
"hsl": {
"h": 208.571,
"s": 95.455,
"l": 8.627
},
"oklch": {
"l": 0.19901,
"c": 0.05012,
"h": 247.2
},
"luminance": 0.00794
}Semantic roles & 50–950 ramp
primary
#01172B
secondary
#714217
accent
#8F29FF
background
#F4F4F6
surface
#E7E7EB
border
#C3C3C6
text
#010205
muted
#77787A