#245373
Closest named color: Deep Sea Blue (#015482). oklch(42.5% 0.074 241.3), rgb(36, 83, 115).
Aa
White text reads best on this color (8.20:1).
About this color
#245373 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.074 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.029 away. White text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #245373 |
| RGB | rgb(36, 83, 115) |
| HSL | hsl(204, 52%, 30%) |
| OKLCH | oklch(42.5% 0.074 241.3) |
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 #245373 | 8.20:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #245373 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #245373 text on white | 8.20:1 | AAA | Lc 88.2 | Fine for body text |
| #245373 text on black | 2.55:1 | Fails | Lc -14.0 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400
#7AA7C8
oklch(70.8% 0.069 240.7)
-
Step 500
500
#5690BA
oklch(63.1% 0.088 241.5)
-
Step 600
600
#397AA6
oklch(55.7% 0.095 241)
-
Step 700
700
#2A668E
oklch(49% 0.089 241.2)
-
Step 800
800 (this color)
#245373
oklch(42.5% 0.074 241.3)
-
Step 900
900
#23455D
oklch(37.6% 0.057 241.3)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#245373 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) | #445374 | 0.037 |
| Deuteranopia (no green cones) | #3A4B72 | 0.032 |
| Tritanopia (no blue cones) | #005B5E | 0.053 |
| Achromatopsia (no color) | #4F4F4F | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245373
#245373
oklch(42.5% 0.074 241.3)
- #6B4420
#6B4420
oklch(42.4% 0.074 61.3)
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 #245373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy #155084 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.041
- Dusk Blue #26538D ΔE 0.044
- Petrol #005F6A ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.050
- Deep Teal #00555A ΔE 0.051
Use #245373 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.