#01192B
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.048 243.1), rgb(1, 25, 43).
Aa
White text reads best on this color (17.86:1).
About this color
#01192B is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.048 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.018 away. White text reads best on it, at 17.86:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.86:1 |
Values
| HEX | #01192B |
| RGB | rgb(1, 25, 43) |
| HSL | hsl(206, 95%, 9%) |
| OKLCH | oklch(20.5% 0.048 243.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #01192B | 17.86:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #01192B | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #01192B text on white | 17.86:1 | AAA | Lc 104.4 | Preferred for body text |
| #01192B text on black | 1.17:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A2C6E3
oklch(81% 0.056 242.7)
-
Step 400
400
#6DA7D5
oklch(70.6% 0.091 243.5)
-
Step 500
500
#4291CA
oklch(63.2% 0.116 243)
-
Step 600
600
#1A7AB6
oklch(55.7% 0.125 242.8)
-
Step 700
700
#07669D
oklch(49.1% 0.117 243.3)
-
Step 800
800
#0E547F
oklch(42.8% 0.096 242.5)
-
Step 900
900
#164566
oklch(37.6% 0.076 243.3)
-
Step 950
950 (this color)
#01192B
oklch(20.5% 0.048 243.1)
#01192B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #101A2C | 0.021 |
| Deuteranopia (no green cones) | #0A162B | 0.015 |
| Tritanopia (no blue cones) | #001D1F | 0.032 |
| Achromatopsia (no color) | #171717 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01192B
#01192B
oklch(20.5% 0.048 243.1)
- #261200
#261200
oklch(20.7% 0.047 63.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #01192B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.018
- Rich Navy #001219 ΔE 0.042
- Dark #1B2431 ΔE 0.057
- Navy Blue #001146 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.066
- Almost Black #070D0D ΔE 0.067
- Jet #212529 ΔE 0.069
- Dark Navy #000435 ΔE 0.070
Use #01192B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.