#010B1C
Closest named color: Rich Navy (#001219). oklch(14.9% 0.042 253.9), rgb(1, 11, 28).
Aa
White text reads best on this color (19.70:1).
About this color
#010B1C is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.042 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.030 away. White text reads best on it, at 19.70:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.06:1 |
| White text | 19.70:1 |
Values
| HEX | #010B1C |
| RGB | rgb(1, 11, 28) |
| HSL | hsl(218, 93%, 6%) |
| OKLCH | oklch(14.9% 0.042 253.9) |
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 #010B1C | 19.70:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #010B1C | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #010B1C text on white | 19.70:1 | AAA | Lc 105.7 | Preferred for body text |
| #010B1C text on black | 1.06:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3E1
oklch(80.9% 0.05 254.1)
-
Step 400
400
#7EA4D2
oklch(70.8% 0.08 253.6)
-
Step 500
500
#5D8CC6
oklch(63.1% 0.102 254.3)
-
Step 600
600
#4275B2
oklch(55.5% 0.11 254)
-
Step 700
700
#346299
oklch(49% 0.102 254.1)
-
Step 800
800
#2B507C
oklch(42.6% 0.085 253.9)
-
Step 900
900
#274364
oklch(37.7% 0.066 253.5)
-
Step 950
950 (this color)
#010B1C
oklch(14.9% 0.042 253.9)
#010B1C 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) | #040C1D | 0.009 |
| Deuteranopia (no green cones) | #010A1C | 0.004 |
| Tritanopia (no blue cones) | #000F12 | 0.030 |
| Achromatopsia (no color) | #0B0B0B | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010B1C
#010B1C
oklch(14.9% 0.042 253.9)
- #130900
#130900
oklch(15.1% 0.032 75)
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 #010B1C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.030
- Almost Black #070D0D ΔE 0.038
- Dark Navy Blue #00022E ΔE 0.049
- Midnight #03012D ΔE 0.050
- Dark Navy #000435 ΔE 0.056
- Very Dark Blue #000133 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.069
- Navy Blue #001146 ΔE 0.086
Use #010B1C 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.