#010D2F
Closest named color: Dark Navy (#000435). oklch(17.5% 0.072 261.8), rgb(1, 13, 47).
Aa
White text reads best on this color (19.09:1).
About this color
#010D2F is a very dark, moderately saturated blue. In OKLCH its lightness is 17%, its chroma 0.072 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.028 away. White text reads best on it, at 19.09:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.09:1 |
| White text | 19.09:1 |
Values
| HEX | #010D2F |
| RGB | rgb(1, 13, 47) |
| HSL | hsl(224, 96%, 9%) |
| OKLCH | oklch(17.5% 0.072 261.8) |
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 #010D2F | 19.09:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #010D2F | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #010D2F text on white | 19.09:1 | AAA | Lc 105.2 | Preferred for body text |
| #010D2F text on black | 1.09:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A3C1F8
oklch(80.8% 0.085 262.3)
-
Step 400
400
#719FF5
oklch(70.7% 0.136 262.1)
-
Step 500
500
#4B85F1
oklch(63.2% 0.173 261.6)
-
Step 600
600
#2F6BDF
oklch(55.5% 0.188 261.8)
-
Step 700
700
#2259C2
oklch(49.2% 0.175 261.7)
-
Step 800
800
#1E499D
oklch(42.7% 0.145 261.9)
-
Step 900
900
#1D3E7D
oklch(37.7% 0.114 261.8)
-
Step 950
950 (this color)
#010D2F
oklch(17.5% 0.072 261.8)
#010D2F 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) | #001230 | 0.016 |
| Deuteranopia (no green cones) | #000D2E | 0.003 |
| Tritanopia (no blue cones) | #00161C | 0.055 |
| Achromatopsia (no color) | #101010 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010D2F
#010D2F
oklch(17.5% 0.072 261.8)
- #180E00
#180E00
oklch(17.3% 0.036 80.7)
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 #010D2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.028
- Dark Navy Blue #00022E ΔE 0.037
- Very Dark Blue #000133 ΔE 0.038
- Midnight #03012D ΔE 0.038
- Navy Blue #001146 ΔE 0.047
- Night Blue #040348 ΔE 0.051
- Rich Navy #001219 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.057
Use #010D2F 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.