#0A4260
Closest named color: Dark Grey Blue (#29465B). oklch(36.1% 0.075 238.6), rgb(10, 66, 96).
Aa
White text reads best on this color (10.70:1).
About this color
#0A4260 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.075 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 10.70:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #0A4260 |
| RGB | rgb(10, 66, 96) |
| HSL | hsl(201, 81%, 21%) |
| OKLCH | oklch(36.1% 0.075 238.6) |
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 #0A4260 | 10.70:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #0A4260 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #0A4260 text on white | 10.70:1 | AAA | Lc 94.5 | Preferred for body text |
| #0A4260 text on black | 1.96:1 | Fails | Lc -8.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#A0C6E1
oklch(80.8% 0.056 239.3)
-
Step 400
400
#69A9D3
oklch(70.8% 0.09 238.6)
-
Step 500
500
#3A92C7
oklch(63.1% 0.115 239)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900 (this color)
#0A4260
oklch(36.1% 0.075 238.6)
-
Step 950
950
#0C293B
oklch(26.9% 0.048 239.4)
#0A4260 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) | #344261 | 0.041 |
| Deuteranopia (no green cones) | #283B5F | 0.031 |
| Tritanopia (no blue cones) | #004A4C | 0.050 |
| Achromatopsia (no color) | #3E3E3E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4260
#0A4260
oklch(36.1% 0.075 238.6)
- #5A320E
#5A320E
oklch(36.1% 0.075 58.2)
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 #0A4260, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.036
- Charcoal #264653 ΔE 0.036
- Midnight Green #073B4C ΔE 0.039
- Marine Blue #01386A ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.045
- Dark Teal #014D4E ΔE 0.055
Use #0A4260 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.