#010A23
Closest named color: Dark Navy Blue (#00022E). oklch(15.3% 0.056 260.5), rgb(1, 10, 35).
Aa
White text reads best on this color (19.64:1).
About this color
#010A23 is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.056 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy Blue (#00022E), ΔE 0.036 away. White text reads best on it, at 19.64:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Navy Blue (#00022E) |
| Black text | 1.06:1 |
| White text | 19.64:1 |
Values
| HEX | #010A23 |
| RGB | rgb(1, 10, 35) |
| HSL | hsl(224, 94%, 7%) |
| OKLCH | oklch(15.3% 0.056 260.5) |
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 #010A23 | 19.64:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #010A23 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #010A23 text on white | 19.64:1 | AAA | Lc 105.6 | Preferred for body text |
| #010A23 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A8C2EC
oklch(80.9% 0.066 259.9)
-
Step 400
400
#7AA1E3
oklch(70.7% 0.106 260.6)
-
Step 500
500
#5888DB
oklch(63.1% 0.136 260.7)
-
Step 600
600
#3D70C8
oklch(55.5% 0.147 260.5)
-
Step 700
700
#2F5EAD
oklch(49.2% 0.136 260.1)
-
Step 800
800
#284D8C
oklch(42.7% 0.113 260.3)
-
Step 900
900
#254070
oklch(37.6% 0.089 261.1)
-
Step 950
950 (this color)
#010A23
oklch(15.3% 0.056 260.5)
#010A23 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) | #000D24 | 0.010 |
| Deuteranopia (no green cones) | #000A23 | 0.003 |
| Tritanopia (no blue cones) | #001014 | 0.043 |
| Achromatopsia (no color) | #0B0B0B | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010A23
#010A23
oklch(15.3% 0.056 260.5)
- #130A00
#130A00
oklch(15.4% 0.032 79.3)
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 #010A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy Blue #00022E ΔE 0.036
- Midnight #03012D ΔE 0.036
- Rich Navy #001219 ΔE 0.040
- Dark Navy #000435 ΔE 0.040
- Very Dark Blue #000133 ΔE 0.043
- Almost Black #070D0D ΔE 0.052
- Rich Black #0D1B2A ΔE 0.068
- Navy Blue #001146 ΔE 0.073
Use #010A23 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.