#010B2B
Closest named color: Dark Navy (#000435). oklch(16.5% 0.068 262.2), rgb(1, 11, 43).
Aa
White text reads best on this color (19.37:1).
About this color
#010B2B is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.068 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 19.37:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.08:1 |
| White text | 19.37:1 |
Values
| HEX | #010B2B |
| RGB | rgb(1, 11, 43) |
| HSL | hsl(226, 95%, 9%) |
| OKLCH | oklch(16.5% 0.068 262.2) |
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 #010B2B | 19.37:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #010B2B | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #010B2B text on white | 19.37:1 | AAA | Lc 105.4 | Preferred for body text |
| #010B2B text on black | 1.08:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300
#A5C1F5
oklch(80.9% 0.08 262.6)
-
Step 400
400
#749FF1
oklch(70.6% 0.13 262.5)
-
Step 500
500
#5085EC
oklch(63.1% 0.165 262.2)
-
Step 600
600
#356CDA
oklch(55.6% 0.179 262.3)
-
Step 700
700
#2859BD
oklch(49% 0.167 262.4)
-
Step 800
800
#224A99
oklch(42.8% 0.137 262.1)
-
Step 900
900
#203E7A
oklch(37.6% 0.108 262.4)
-
Step 950
950 (this color)
#010B2B
oklch(16.5% 0.068 262.2)
#010B2B 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) | #00102C | 0.016 |
| Deuteranopia (no green cones) | #000B2A | 0.003 |
| Tritanopia (no blue cones) | #001319 | 0.051 |
| Achromatopsia (no color) | #0D0D0D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010B2B
#010B2B
oklch(16.5% 0.068 262.2)
- #160D00
#160D00
oklch(16.7% 0.034 82.5)
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 #010B2B, 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 0.031
- Midnight #03012D ΔE 0.032
- Very Dark Blue #000133 ΔE 0.035
- Rich Navy #001219 ΔE 0.048
- Navy Blue #001146 ΔE 0.057
- Night Blue #040348 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.063
Use #010B2B 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.