#010717
Closest named color: Almost Black (#070D0D). oklch(13.1% 0.04 258), rgb(1, 7, 23).
Aa
White text reads best on this color (20.11:1).
About this color
#010717 is a very dark, muted blue. In OKLCH its lightness is 13%, its chroma 0.040 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.042 away. White text reads best on it, at 20.11:1.
| Hue family | Blues |
| Lightness | very dark (13%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.04:1 |
| White text | 20.11:1 |
Values
| HEX | #010717 |
| RGB | rgb(1, 7, 23) |
| HSL | hsl(224, 92%, 5%) |
| OKLCH | oklch(13.1% 0.04 258) |
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 #010717 | 20.11:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #010717 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #010717 text on white | 20.11:1 | AAA | Lc 105.9 | Preferred for body text |
| #010717 text on black | 1.04:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2DF
oklch(80.8% 0.047 257.6)
-
Step 400
400
#84A2D0
oklch(70.7% 0.076 258.8)
-
Step 500
500
#648BC3
oklch(63.1% 0.096 257.4)
-
Step 600
600
#4B74B0
oklch(55.6% 0.105 257.8)
-
Step 700
700
#3C6197
oklch(49.1% 0.097 257.8)
-
Step 800
800
#324F7B
oklch(42.6% 0.081 258.5)
-
Step 900
900
#2C4263
oklch(37.7% 0.063 258.3)
-
Step 950
950 (this color)
#010717
oklch(13.1% 0.04 258)
#010717 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) | #020818 | 0.006 |
| Deuteranopia (no green cones) | #000617 | 0.007 |
| Tritanopia (no blue cones) | #000B0D | 0.032 |
| Achromatopsia (no color) | #070707 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010717
#010717
oklch(13.1% 0.04 258)
- #0D0600
#0D0600
oklch(13% 0.027 78.1)
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 #010717, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.042
- Rich Navy #001219 ΔE 0.044
- Midnight #03012D ΔE 0.051
- Dark Navy Blue #00022E ΔE 0.052
- Very Dark Blue #000133 ΔE 0.062
- Dark Navy #000435 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.087
- Very Dark Brown #1D0200 ΔE 0.089
Use #010717 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.