#0F5988
Closest named color: Deep Sea Blue (#015482). oklch(44.6% 0.102 243.5), rgb(15, 89, 136).
Aa
White text reads best on this color (7.48:1).
About this color
#0F5988 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.102 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.019 away. White text reads best on it, at 7.48:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #0F5988 |
| RGB | rgb(15, 89, 136) |
| HSL | hsl(203, 80%, 30%) |
| OKLCH | oklch(44.6% 0.102 243.5) |
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 #0F5988 | 7.48:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #0F5988 | 2.80:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #0F5988 text on white | 7.48:1 | AAA | Lc 85.6 | Fine for body text |
| #0F5988 text on black | 2.80:1 | Fails | Lc -16.5 | 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
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#A0C6E5
oklch(81% 0.06 243.2)
-
Step 400
400
#6AA7D8
oklch(70.6% 0.096 244)
-
Step 500
500
#3C91CD
oklch(63.2% 0.121 243)
-
Step 600
600
#0B7ABA
oklch(55.7% 0.132 243.1)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800 (this color)
#0F5988
oklch(44.6% 0.102 243.5)
-
Step 900
900
#124568
oklch(37.6% 0.08 243.5)
-
Step 950
950
#0D293D
oklch(27% 0.05 242.9)
#0F5988 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) | #435B8A | 0.046 |
| Deuteranopia (no green cones) | #325087 | 0.033 |
| Tritanopia (no blue cones) | #00656A | 0.071 |
| Achromatopsia (no color) | #555555 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F5988
#0F5988
oklch(44.6% 0.102 243.5)
- #7A4600
#7A4600
oklch(44.7% 0.101 64.1)
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 #0F5988, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.019
- Light Navy Blue #2E5A88 ΔE 0.022
- Dusk Blue #26538D ΔE 0.024
- Light Navy #155084 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.040
- Peacock Blue #016795 ΔE 0.043
- Denim #3B638C ΔE 0.049
- YInMn Blue #415A77 ΔE 0.049
Use #0F5988 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.