#10516B
Closest named color: Deep Teal (#00555A). oklch(40.9% 0.075 230.5), rgb(16, 81, 107).
Aa
White text reads best on this color (8.70:1).
About this color
#10516B is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.075 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.036 away. White text reads best on it, at 8.70:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #10516B |
| RGB | rgb(16, 81, 107) |
| HSL | hsl(197, 74%, 24%) |
| OKLCH | oklch(40.9% 0.075 230.5) |
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 #10516B | 8.70:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #10516B | 2.41:1 | Fails | Lc 14.5 | Not readable |
| #10516B text on white | 8.70:1 | AAA | Lc 89.5 | Fine for body text |
| #10516B text on black | 2.41:1 | Fails | Lc -12.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A5C6D8
oklch(80.8% 0.044 231.9)
-
Step 400
400
#72A9C4
oklch(70.7% 0.07 230.2)
-
Step 500
500
#4993B6
oklch(63% 0.09 231.1)
-
Step 600
600
#267DA2
oklch(55.6% 0.098 231)
-
Step 700
700
#17698A
oklch(49% 0.09 230.8)
-
Step 800
800 (this color)
#10516B
oklch(40.9% 0.075 230.5)
-
Step 900
900
#1B475B
oklch(37.7% 0.059 230.9)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#10516B 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) | #44506C | 0.051 |
| Deuteranopia (no green cones) | #38476B | 0.045 |
| Tritanopia (no blue cones) | #00585A | 0.043 |
| Achromatopsia (no color) | #4B4B4B | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10516B
#10516B
oklch(40.9% 0.075 230.5)
- #6A3D22
#6A3D22
oklch(40.9% 0.075 50.4)
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 #10516B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Light Navy #155084 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Charcoal #264653 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Teal #014D4E ΔE 0.051
Use #10516B 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.