#105A7E
Closest named color: Deep Sea Blue (#015482). oklch(44.3% 0.089 236.3), rgb(16, 90, 126).
Aa
White text reads best on this color (7.53:1).
About this color
#105A7E is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.089 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.023 away. White text reads best on it, at 7.53:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #105A7E |
| RGB | rgb(16, 90, 126) |
| HSL | hsl(200, 77%, 28%) |
| OKLCH | oklch(44.3% 0.089 236.3) |
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 #105A7E | 7.53:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #105A7E | 2.78:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #105A7E text on white | 7.53:1 | AAA | Lc 85.8 | Fine for body text |
| #105A7E text on black | 2.78:1 | Fails | Lc -16.3 | 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
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A1C7DE
oklch(81% 0.052 234.9)
-
Step 400
400
#6CA9CE
oklch(70.7% 0.083 236.3)
-
Step 500
500
#3F93C1
oklch(63.2% 0.106 236)
-
Step 600
600
#107CAE
oklch(55.6% 0.116 236.6)
-
Step 700
700
#006894
oklch(49% 0.106 236.4)
-
Step 800
800 (this color)
#105A7E
oklch(44.3% 0.089 236.3)
-
Step 900
900
#144762
oklch(37.8% 0.07 236.4)
-
Step 950
950
#0E2A39
oklch(27.1% 0.044 235)
#105A7E 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) | #485A80 | 0.051 |
| Deuteranopia (no green cones) | #3A507D | 0.042 |
| Tritanopia (no blue cones) | #006366 | 0.056 |
| Achromatopsia (no color) | #545454 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #105A7E
#105A7E
oklch(44.3% 0.089 236.3)
- #78451B
#78451B
oklch(44.3% 0.089 56.7)
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 #105A7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.028
- Light Navy #155084 ΔE 0.034
- Dusk Blue #26538D ΔE 0.038
- Petrol #005F6A ΔE 0.042
- YInMn Blue #415A77 ΔE 0.042
- Peacock Blue #016795 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.050
Use #105A7E 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.