#245378
Closest named color: Deep Sea Blue (#015482). oklch(42.8% 0.08 245.1), rgb(36, 83, 120).
Aa
White text reads best on this color (8.12:1).
About this color
#245378 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.080 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.022 away. White text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #245378 |
| RGB | rgb(36, 83, 120) |
| HSL | hsl(206, 54%, 31%) |
| OKLCH | oklch(42.8% 0.08 245.1) |
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 #245378 | 8.12:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #245378 | 2.58:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #245378 text on white | 8.12:1 | AAA | Lc 87.9 | Fine for body text |
| #245378 text on black | 2.58:1 | Fails | Lc -14.2 | 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
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#A8C4DD
oklch(80.8% 0.047 245.4)
-
Step 400
400
#79A6CD
oklch(70.7% 0.075 245.3)
-
Step 500
500
#558FC0
oklch(63.1% 0.096 245.6)
-
Step 600
600
#3879AC
oklch(55.7% 0.104 245)
-
Step 700
700
#296594
oklch(49% 0.098 245.4)
-
Step 800
800 (this color)
#245378
oklch(42.8% 0.08 245.1)
-
Step 900
900
#234561
oklch(37.8% 0.063 245.4)
-
Step 950
950
#152839
oklch(26.9% 0.04 246.9)
#245378 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) | #42547A | 0.034 |
| Deuteranopia (no green cones) | #374C77 | 0.027 |
| Tritanopia (no blue cones) | #005C60 | 0.059 |
| Achromatopsia (no color) | #4F4F4F | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245378
#245378
oklch(42.8% 0.08 245.1)
- #6D4519
#6D4519
oklch(42.8% 0.08 64.9)
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 #245378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.022
- Light Navy #155084 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.034
- Dusk Blue #26538D ΔE 0.036
- YInMn Blue #415A77 ΔE 0.041
- Petrol #005F6A ΔE 0.052
- Dusk #4E5481 ΔE 0.054
- Denim Blue #3B5B92 ΔE 0.054
Use #245378 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.