#105C8A
Closest named color: Light Navy Blue (#2E5A88). oklch(45.5% 0.102 242.2), rgb(16, 92, 138).
Aa
White text reads best on this color (7.19:1).
About this color
#105C8A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.102 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.019 away. White text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #105C8A |
| RGB | rgb(16, 92, 138) |
| HSL | hsl(203, 79%, 30%) |
| OKLCH | oklch(45.5% 0.102 242.2) |
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 #105C8A | 7.19:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #105C8A | 2.91:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #105C8A text on white | 7.19:1 | AAA | Lc 84.5 | Fine for body text |
| #105C8A text on black | 2.91:1 | Fails | Lc -17.5 | Dividers and decoration only |
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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#A0C6E4
oklch(80.9% 0.059 242.2)
-
Step 400
400
#69A8D7
oklch(70.8% 0.095 242.1)
-
Step 500
500
#3A91CC
oklch(63.1% 0.121 242.1)
-
Step 600
600
#027AB9
oklch(55.6% 0.132 242.2)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800 (this color)
#105C8A
oklch(45.5% 0.102 242.2)
-
Step 900
900
#114668
oklch(37.8% 0.079 242.1)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#105C8A 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) | #465D8C | 0.047 |
| Deuteranopia (no green cones) | #355389 | 0.035 |
| Tritanopia (no blue cones) | #00676C | 0.069 |
| Achromatopsia (no color) | #575757 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #105C8A
#105C8A
oklch(45.5% 0.102 242.2)
- #7E4806
#7E4806
oklch(45.6% 0.102 62.5)
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 #105C8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.019
- Deep Sea Blue #015482 ΔE 0.027
- Dusk Blue #26538D ΔE 0.029
- Peacock Blue #016795 ΔE 0.034
- Light Navy #155084 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.037
- Denim #3B638C ΔE 0.042
- YInMn Blue #415A77 ΔE 0.047
Use #105C8A 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.