#005373
Closest named color: Deep Sea Blue (#015482). oklch(41.6% 0.086 233.1), rgb(0, 83, 115).
Aa
White text reads best on this color (8.45:1).
About this color
#005373 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.086 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.025 away. White text reads best on it, at 8.45:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #005373 |
| RGB | rgb(0, 83, 115) |
| HSL | hsl(197, 100%, 23%) |
| OKLCH | oklch(41.6% 0.086 233.1) |
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 #005373 | 8.45:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #005373 | 2.48:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #005373 text on white | 8.45:1 | AAA | Lc 88.6 | Fine for body text |
| #005373 text on black | 2.48:1 | Fails | Lc -13.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A1C7DC
oklch(80.9% 0.05 232.4)
-
Step 400
400
#6CA9CB
oklch(70.6% 0.08 234)
-
Step 500
500
#3E94BE
oklch(63.2% 0.103 233)
-
Step 600
600
#0E7DAA
oklch(55.6% 0.112 233.4)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800 (this color)
#005373
oklch(41.6% 0.086 233.1)
-
Step 900
900
#13475F
oklch(37.6% 0.067 232.9)
-
Step 950
950
#0E2A38
oklch(27.1% 0.042 233.2)
#005373 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) | #435274 | 0.054 |
| Deuteranopia (no green cones) | #354972 | 0.044 |
| Tritanopia (no blue cones) | #005C5E | 0.052 |
| Achromatopsia (no color) | #4D4D4D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005373
#005373
oklch(41.6% 0.086 233.1)
- #703D19
#703D19
oklch(41.6% 0.087 52.9)
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 #005373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy #155084 ΔE 0.034
- Deep Teal #00555A ΔE 0.046
- Petrol #005F6A ΔE 0.046
- Dusk Blue #26538D ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.051
- Twilight Blue #0A437A ΔE 0.053
Use #005373 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.