#0A0B28
Closest named color: Midnight (#03012D). oklch(17% 0.058 276.8), rgb(10, 11, 40).
Aa
White text reads best on this color (19.24:1).
About this color
#0A0B28 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.058 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.042 away. White text reads best on it, at 19.24:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.09:1 |
| White text | 19.24:1 |
Values
| HEX | #0A0B28 |
| RGB | rgb(10, 11, 40) |
| HSL | hsl(238, 60%, 10%) |
| OKLCH | oklch(17% 0.058 276.8) |
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 #0A0B28 | 19.24:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #0A0B28 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #0A0B28 text on white | 19.24:1 | AAA | Lc 105.4 | Preferred for body text |
| #0A0B28 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D2D7F3
oklch(88.4% 0.039 277.6)
-
Step 300
300
#B5BDEE
oklch(80.9% 0.07 277.5)
-
Step 400
400
#8F9AE5
oklch(70.7% 0.11 276.8)
-
Step 500
500
#757FDD
oklch(63.1% 0.141 277)
-
Step 600
600
#5E66CB
oklch(55.5% 0.154 276.7)
-
Step 700
700
#4E55AF
oklch(49.1% 0.141 276.5)
-
Step 800
800
#40468E
oklch(42.8% 0.117 276.6)
-
Step 900
900
#363B71
oklch(37.6% 0.092 277.1)
-
Step 950
950 (this color)
#0A0B28
oklch(17% 0.058 276.8)
#0A0B28 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) | #001029 | 0.023 |
| Deuteranopia (no green cones) | #000D27 | 0.021 |
| Tritanopia (no blue cones) | #001217 | 0.051 |
| Achromatopsia (no color) | #0E0E0E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0B28
#0A0B28
oklch(17% 0.058 276.8)
- #140F00
#140F00
oklch(17% 0.035 95.5)
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 #0A0B28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.042
- Dark Navy #000435 ΔE 0.042
- Dark Navy Blue #00022E ΔE 0.045
- Rich Navy #001219 ΔE 0.047
- Very Dark Blue #000133 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.056
- Almost Black #070D0D ΔE 0.060
- Navy Blue #001146 ΔE 0.063
Use #0A0B28 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.