#00020B
Closest named color: Almost Black (#070D0D). oklch(8.9% 0.033 258.2), rgb(0, 2, 11).
Aa
White text reads best on this color (20.71:1).
About this color
#00020B is a very dark, muted blue. In OKLCH its lightness is 9%, its chroma 0.033 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.070 away. White text reads best on it, at 20.71:1.
| Hue family | Blues |
| Lightness | very dark (9%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.01:1 |
| White text | 20.71:1 |
Values
| HEX | #00020B |
| RGB | rgb(0, 2, 11) |
| HSL | hsl(229, 100%, 2%) |
| OKLCH | oklch(8.9% 0.033 258.2) |
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 #00020B | 20.71:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #00020B | 1.01:1 | Fails | Lc 0.0 | Not readable |
| #00020B text on white | 20.71:1 | AAA | Lc 106.0 | Preferred for body text |
| #00020B text on black | 1.01:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE8
oklch(88.5% 0.022 256.7)
-
Step 300
300
#B1C2DB
oklch(80.9% 0.04 257.9)
-
Step 400
400
#89A2C8
oklch(70.7% 0.063 258.6)
-
Step 500
500
#6B8BBA
oklch(63.1% 0.08 257.9)
-
Step 600
600
#5374A6
oklch(55.5% 0.087 258.5)
-
Step 700
700
#43618F
oklch(49% 0.082 258.7)
-
Step 800
800
#375074
oklch(42.8% 0.068 257.5)
-
Step 900
900
#30425D
oklch(37.6% 0.052 258.3)
-
Step 950
950 (this color)
#00020B
oklch(8.9% 0.033 258.2)
#00020B 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) | #00030B | 0.009 |
| Deuteranopia (no green cones) | #00020B | 0.000 |
| Tritanopia (no blue cones) | #000305 | 0.021 |
| Achromatopsia (no color) | #020202 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00020B
#00020B
oklch(8.9% 0.033 258.2)
- #040200
#040200
oklch(8.9% 0.018 82.3)
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 #00020B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.070
- Midnight #03012D ΔE 0.077
- Dark Navy Blue #00022E ΔE 0.078
- Rich Navy #001219 ΔE 0.082
- Very Dark Blue #000133 ΔE 0.088
- Dark Navy #000435 ΔE 0.095
- Black #000000 ΔE 0.095
- Very Dark Brown #1D0200 ΔE 0.102
Use #00020B 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.