#010D1F
Closest named color: Rich Navy (#001219). oklch(15.8% 0.044 253.1), rgb(1, 13, 31).
Aa
White text reads best on this color (19.46:1).
About this color
#010D1F is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.044 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.026 away. White text reads best on it, at 19.46:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.07:1 |
| White text | 19.46:1 |
Values
| HEX | #010D1F |
| RGB | rgb(1, 13, 31) |
| HSL | hsl(216, 94%, 6%) |
| OKLCH | oklch(15.8% 0.044 253.1) |
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 #010D1F | 19.46:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #010D1F | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #010D1F text on white | 19.46:1 | AAA | Lc 105.6 | Preferred for body text |
| #010D1F text on black | 1.07:1 | 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
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A9C3E2
oklch(80.8% 0.052 253)
-
Step 400
400
#7BA4D4
oklch(70.7% 0.084 252.9)
-
Step 500
500
#598CC9
oklch(63% 0.108 253.7)
-
Step 600
600
#3D76B5
oklch(55.7% 0.115 252.6)
-
Step 700
700
#2F629C
oklch(49% 0.108 253.4)
-
Step 800
800
#28517E
oklch(42.8% 0.088 252.5)
-
Step 900
900
#254366
oklch(37.7% 0.07 253.4)
-
Step 950
950 (this color)
#010D1F
oklch(15.8% 0.044 253.1)
#010D1F 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) | #050E20 | 0.010 |
| Deuteranopia (no green cones) | #010B1F | 0.007 |
| Tritanopia (no blue cones) | #001114 | 0.032 |
| Achromatopsia (no color) | #0D0D0D | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010D1F
#010D1F
oklch(15.8% 0.044 253.1)
- #150A00
#150A00
oklch(15.7% 0.033 73.5)
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 #010D1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.026
- Almost Black #070D0D ΔE 0.040
- Dark Navy Blue #00022E ΔE 0.050
- Midnight #03012D ΔE 0.050
- Dark Navy #000435 ΔE 0.053
- Very Dark Blue #000133 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.060
- Navy Blue #001146 ΔE 0.079
Use #010D1F 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.