#0A4469
Closest named color: Twilight Blue (#0A437A). oklch(37.2% 0.084 243.4), rgb(10, 68, 105).
Aa
White text reads best on this color (10.27:1).
About this color
#0A4469 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.084 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.030 away. White text reads best on it, at 10.27:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.04:1 |
| White text | 10.27:1 |
Values
| HEX | #0A4469 |
| RGB | rgb(10, 68, 105) |
| HSL | hsl(203, 83%, 23%) |
| OKLCH | oklch(37.2% 0.084 243.4) |
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 #0A4469 | 10.27:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #0A4469 | 2.04:1 | Fails | Lc 10.5 | Not readable |
| #0A4469 text on white | 10.27:1 | AAA | Lc 93.5 | Preferred for body text |
| #0A4469 text on black | 2.04:1 | Fails | Lc -9.1 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9EC6E7
oklch(80.9% 0.063 243.5)
-
Step 400
400
#66A8DB
oklch(70.8% 0.101 243.2)
-
Step 500
500
#3491D1
oklch(63.2% 0.129 243.1)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900 (this color)
#0A4469
oklch(37.2% 0.084 243.4)
-
Step 950
950
#0B293E
oklch(27% 0.053 242.9)
#0A4469 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) | #32456B | 0.037 |
| Deuteranopia (no green cones) | #253D68 | 0.027 |
| Tritanopia (no blue cones) | #004D51 | 0.058 |
| Achromatopsia (no color) | #414141 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4469
#0A4469
oklch(37.2% 0.084 243.4)
- #5F3500
#5F3500
oklch(37.3% 0.085 63.7)
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 #0A4469, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.035
- Marine Blue #01386A ΔE 0.039
- Charcoal #264653 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.051
- Midnight Green #073B4C ΔE 0.054
- Light Navy #155084 ΔE 0.056
Use #0A4469 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.