#0A4161
Closest named color: Dark Grey Blue (#29465B). oklch(35.9% 0.077 240.8), rgb(10, 65, 97).
Aa
White text reads best on this color (10.81:1).
About this color
#0A4161 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.077 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 10.81:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.94:1 |
| White text | 10.81:1 |
Values
| HEX | #0A4161 |
| RGB | rgb(10, 65, 97) |
| HSL | hsl(202, 81%, 21%) |
| OKLCH | oklch(35.9% 0.077 240.8) |
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 #0A4161 | 10.81:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #0A4161 | 1.94:1 | Fails | Lc 9.2 | Not readable |
| #0A4161 text on white | 10.81:1 | AAA | Lc 94.7 | Preferred for body text |
| #0A4161 text on black | 1.94:1 | Fails | Lc -7.9 | 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
#C7DCED
oklch(88.4% 0.033 242.4)
-
Step 300
300
#A0C6E3
oklch(80.9% 0.058 241.3)
-
Step 400
400
#69A8D5
oklch(70.7% 0.093 240.9)
-
Step 500
500
#3B92CA
oklch(63.2% 0.118 240.7)
-
Step 600
600
#037BB6
oklch(55.6% 0.127 240.4)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#01547F
oklch(42.6% 0.099 240.8)
-
Step 900
900 (this color)
#0A4161
oklch(35.9% 0.077 240.8)
-
Step 950
950
#0D293C
oklch(27% 0.049 241.5)
#0A4161 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) | #324262 | 0.039 |
| Deuteranopia (no green cones) | #263A60 | 0.029 |
| Tritanopia (no blue cones) | #00494C | 0.052 |
| Achromatopsia (no color) | #3D3D3D | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4161
#0A4161
oklch(35.9% 0.077 240.8)
- #593209
#593209
oklch(35.9% 0.076 61.1)
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 #0A4161, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Marine Blue #01386A ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.039
- Midnight Green #073B4C ΔE 0.039
- Charcoal #264653 ΔE 0.040
- Twilight Blue #0A437A ΔE 0.043
- Dark Teal #014D4E ΔE 0.059
Use #0A4161 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.