#005271
Closest named color: Deep Sea Blue (#015482). oklch(41.2% 0.085 232.5), rgb(0, 82, 113).
Aa
White text reads best on this color (8.58:1).
About this color
#005271 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.085 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.029 away. White text reads best on it, at 8.58:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #005271 |
| RGB | rgb(0, 82, 113) |
| HSL | hsl(196, 100%, 22%) |
| OKLCH | oklch(41.2% 0.085 232.5) |
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 #005271 | 8.58:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #005271 | 2.44:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #005271 text on white | 8.58:1 | AAA | Lc 89.0 | Fine for body text |
| #005271 text on black | 2.44:1 | Fails | Lc -13.2 | 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
#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
#A2C7DC
oklch(81% 0.049 233.1)
-
Step 400
400
#6CAACA
oklch(70.8% 0.079 231.9)
-
Step 500
500
#3F94BC
oklch(63.2% 0.101 231.9)
-
Step 600
600
#117DA9
oklch(55.5% 0.111 233)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800 (this color)
#005271
oklch(41.2% 0.085 232.5)
-
Step 900
900
#14475F
oklch(37.6% 0.067 233.2)
-
Step 950
950
#0E2A37
oklch(27% 0.041 231.2)
#005271 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) | #425172 | 0.053 |
| Deuteranopia (no green cones) | #354871 | 0.045 |
| Tritanopia (no blue cones) | #005A5D | 0.049 |
| Achromatopsia (no color) | #4C4C4C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005271
#005271
oklch(41.2% 0.085 232.5)
- #6E3C1A
#6E3C1A
oklch(41.2% 0.084 52.2)
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 #005271, 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 0.036
- Deep Teal #00555A ΔE 0.044
- Petrol #005F6A ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- Twilight Blue #0A437A ΔE 0.052
- Dusk Blue #26538D ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
Use #005271 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.