#005175
Closest named color: Deep Sea Blue (#015482). oklch(41.2% 0.09 236.8), rgb(0, 81, 117).
Aa
White text reads best on this color (8.62:1).
About this color
#005175 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.090 and its hue 237°. 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 8.62:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #005175 |
| RGB | rgb(0, 81, 117) |
| HSL | hsl(198, 100%, 23%) |
| OKLCH | oklch(41.2% 0.09 236.8) |
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 #005175 | 8.62:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #005175 | 2.43:1 | Fails | Lc 14.9 | Not readable |
| #005175 text on white | 8.62:1 | AAA | Lc 89.1 | Fine for body text |
| #005175 text on black | 2.43:1 | Fails | Lc -13.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A1C6DF
oklch(80.8% 0.053 237.9)
-
Step 400
400
#6CA9CE
oklch(70.7% 0.083 236.3)
-
Step 500
500
#3F93C2
oklch(63.2% 0.107 236.5)
-
Step 600
600
#117CAE
oklch(55.6% 0.116 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800 (this color)
#005175
oklch(41.2% 0.09 236.8)
-
Step 900
900
#144762
oklch(37.8% 0.07 236.4)
-
Step 950
950
#0E2939
oklch(26.8% 0.044 237.6)
#005175 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) | #3F5177 | 0.050 |
| Deuteranopia (no green cones) | #314774 | 0.041 |
| Tritanopia (no blue cones) | #005A5E | 0.055 |
| Achromatopsia (no color) | #4C4C4C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005175
#005175
oklch(41.2% 0.09 236.8)
- #6F3C10
#6F3C10
oklch(41.2% 0.09 56.2)
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 #005175, 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 0.028
- Twilight Blue #0A437A ΔE 0.045
- Dusk Blue #26538D ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.052
- Deep Teal #00555A ΔE 0.052
- Petrol #005F6A ΔE 0.053
Use #005175 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.