#0A468F
Closest named color: Cobalt (#1E488F). oklch(40.4% 0.134 257), rgb(10, 70, 143).
Aa
White text reads best on this color (9.18:1).
About this color
#0A468F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.134 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.014 away. White text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #0A468F |
| RGB | rgb(10, 70, 143) |
| HSL | hsl(213, 87%, 30%) |
| OKLCH | oklch(40.4% 0.134 257) |
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 #0A468F | 9.18:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #0A468F | 2.28:1 | Fails | Lc 13.4 | Not readable |
| #0A468F text on white | 9.18:1 | AAA | Lc 90.6 | Preferred for body text |
| #0A468F text on black | 2.28:1 | Fails | Lc -11.7 | 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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A1C3F3
oklch(80.9% 0.078 257)
-
Step 400
400
#6CA2EE
oklch(70.7% 0.126 257.1)
-
Step 500
500
#4389E8
oklch(63.2% 0.16 256.8)
-
Step 600
600
#2070D6
oklch(55.5% 0.174 256.9)
-
Step 700
700
#125DBA
oklch(49.1% 0.162 257.1)
-
Step 800
800 (this color)
#0A468F
oklch(40.4% 0.134 257)
-
Step 900
900
#184178
oklch(37.8% 0.104 256.9)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#0A468F 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) | #174E92 | 0.025 |
| Deuteranopia (no green cones) | #00428E | 0.013 |
| Tritanopia (no blue cones) | #005863 | 0.102 |
| Achromatopsia (no color) | #484848 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A468F
#0A468F
oklch(40.4% 0.134 257)
- #624200
#624200
oklch(40.5% 0.085 77.5)
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 #0A468F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.014
- Twilight Blue #0A437A ΔE 0.036
- Light Navy #155084 ΔE 0.038
- Dusk Blue #26538D ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.049
- Sapphire #2138AB ΔE 0.058
- Blueberry #464196 ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.066
Use #0A468F 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.