#010917
Closest named color: Almost Black (#070D0D). oklch(13.8% 0.036 252.5), rgb(1, 9, 23).
Aa
White text reads best on this color (19.94:1).
About this color
#010917 is a very dark, muted blue. In OKLCH its lightness is 14%, its chroma 0.036 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.035 away. White text reads best on it, at 19.94:1.
| Hue family | Blues |
| Lightness | very dark (14%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.05:1 |
| White text | 19.94:1 |
Values
| HEX | #010917 |
| RGB | rgb(1, 9, 23) |
| HSL | hsl(218, 92%, 5%) |
| OKLCH | oklch(13.8% 0.036 252.5) |
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 #010917 | 19.94:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #010917 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #010917 text on white | 19.94:1 | AAA | Lc 105.8 | Preferred for body text |
| #010917 text on black | 1.05:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#AEC3DC
oklch(80.9% 0.042 252.9)
-
Step 400
400
#82A4CB
oklch(70.8% 0.069 252.2)
-
Step 500
500
#628DBD
oklch(63.2% 0.087 251.9)
-
Step 600
600
#4976A9
oklch(55.6% 0.094 252.6)
-
Step 700
700
#3A6391
oklch(49.1% 0.088 252.5)
-
Step 800
800
#305176
oklch(42.7% 0.073 252.4)
-
Step 900
900
#2B435F
oklch(37.6% 0.057 253)
-
Step 950
950 (this color)
#010917
oklch(13.8% 0.036 252.5)
#010917 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) | #040A18 | 0.010 |
| Deuteranopia (no green cones) | #020817 | 0.005 |
| Tritanopia (no blue cones) | #000C0E | 0.027 |
| Achromatopsia (no color) | #090909 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010917
#010917
oklch(13.8% 0.036 252.5)
- #100700
#100700
oklch(13.9% 0.029 74.1)
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 #010917, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.035
- Rich Navy #001219 ΔE 0.036
- Midnight #03012D ΔE 0.055
- Dark Navy Blue #00022E ΔE 0.055
- Very Dark Blue #000133 ΔE 0.064
- Dark Navy #000435 ΔE 0.064
- Rich Black #0D1B2A ΔE 0.079
- Very Dark Brown #1D0200 ΔE 0.086
Use #010917 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.