#0D5783
Closest named color: Deep Sea Blue (#015482). oklch(43.8% 0.098 242.1), rgb(13, 87, 131).
Aa
White text reads best on this color (7.75:1).
About this color
#0D5783 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.098 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.011 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #0D5783 |
| RGB | rgb(13, 87, 131) |
| HSL | hsl(202, 82%, 28%) |
| OKLCH | oklch(43.8% 0.098 242.1) |
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 #0D5783 | 7.75:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #0D5783 | 2.70:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #0D5783 text on white | 7.75:1 | AAA | Lc 86.5 | Fine for body text |
| #0D5783 text on black | 2.70:1 | Fails | Lc -15.6 | 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
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C8DCED
oklch(88.5% 0.032 243.7)
-
Step 300
300
#A1C6E3
oklch(80.9% 0.057 242)
-
Step 400
400
#6BA8D5
oklch(70.8% 0.092 241.7)
-
Step 500
500
#3E91CA
oklch(63.1% 0.117 242)
-
Step 600
600
#107AB7
oklch(55.6% 0.128 242.3)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800 (this color)
#0D5783
oklch(43.8% 0.098 242.1)
-
Step 900
900
#144666
oklch(37.8% 0.075 241.4)
-
Step 950
950
#0E293C
oklch(27% 0.048 242.2)
#0D5783 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) | #425885 | 0.046 |
| Deuteranopia (no green cones) | #324E82 | 0.035 |
| Tritanopia (no blue cones) | #006267 | 0.066 |
| Achromatopsia (no color) | #525252 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D5783
#0D5783
oklch(43.8% 0.098 242.1)
- #774305
#774305
oklch(43.7% 0.098 61.9)
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 #0D5783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.011
- Light Navy #155084 ΔE 0.021
- Dusk Blue #26538D ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.049
- Peacock Blue #016795 ΔE 0.051
- Cobalt #1E488F ΔE 0.051
Use #0D5783 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.