#0A449A
Closest named color: Cobalt (#1E488F). oklch(40.9% 0.152 259.5), rgb(10, 68, 154).
Aa
White text reads best on this color (9.10:1).
About this color
#0A449A is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.152 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.025 away. White text reads best on it, at 9.10:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #0A449A |
| RGB | rgb(10, 68, 154) |
| HSL | hsl(216, 88%, 32%) |
| OKLCH | oklch(40.9% 0.152 259.5) |
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 #0A449A | 9.10:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #0A449A | 2.30:1 | Fails | Lc 13.7 | Not readable |
| #0A449A text on white | 9.10:1 | AAA | Lc 90.3 | Preferred for body text |
| #0A449A text on black | 2.30:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFA
oklch(88.4% 0.049 259.8)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#6AA0F8
oklch(70.7% 0.142 259.7)
-
Step 500
500
#4085F5
oklch(63% 0.182 259.7)
-
Step 600
600
#1E6CE4
oklch(55.7% 0.197 259.6)
-
Step 700
700
#0F59C6
oklch(49.1% 0.183 259.5)
-
Step 800
800 (this color)
#0A449A
oklch(40.9% 0.152 259.5)
-
Step 900
900
#163F7F
oklch(37.8% 0.118 259.3)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#0A449A 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) | #004F9D | 0.029 |
| Deuteranopia (no green cones) | #004298 | 0.008 |
| Tritanopia (no blue cones) | #005A68 | 0.116 |
| Achromatopsia (no color) | #484848 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A449A
#0A449A
oklch(40.9% 0.152 259.5)
- #624400
#624400
oklch(40.9% 0.085 80)
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 #0A449A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.025
- Sapphire #2138AB ΔE 0.041
- Twilight Blue #0A437A ΔE 0.054
- Light Navy #155084 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Blueberry #464196 ΔE 0.061
- Deep Sea Blue #015482 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.069
Use #0A449A 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.