#517284
Closest named color: Metallic Blue (#4F738E). oklch(53.4% 0.047 232.7), rgb(81, 114, 132).
Aa
White text reads best on this color (5.13:1).
About this color
#517284 is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.047 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.015 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #517284 |
| RGB | rgb(81, 114, 132) |
| HSL | hsl(201, 24%, 42%) |
| OKLCH | oklch(53.4% 0.047 232.7) |
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 #517284 | 5.13:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #517284 | 4.08:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #517284 text on white | 5.13:1 | AA | Lc 75.4 | Fine for body text |
| #517284 text on black | 4.08:1 | AA large text | Lc -26.4 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBE0
oklch(88.6% 0.012 231.7)
-
Step 300
300
#B4C3CC
oklch(80.8% 0.021 233.9)
-
Step 400
400
#8CA5B3
oklch(70.7% 0.035 232.5)
-
Step 500
500
#708FA0
oklch(63.3% 0.043 232.3)
-
Step 600
600 (this color)
#517284
oklch(53.4% 0.047 232.7)
-
Step 700
700
#476576
oklch(49% 0.044 233.7)
-
Step 800
800
#3B5360
oklch(42.8% 0.036 232.4)
-
Step 900
900
#33444E
oklch(37.6% 0.028 234.3)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#517284 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) | #697185 | 0.032 |
| Deuteranopia (no green cones) | #626B84 | 0.029 |
| Tritanopia (no blue cones) | #3F7778 | 0.035 |
| Achromatopsia (no color) | #6E6E6E | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #517284
#517284
oklch(53.4% 0.047 232.7)
- #836654
#836654
oklch(53.4% 0.046 53.3)
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 #517284, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.015
- Dull Blue #49759C ΔE 0.037
- Battleship Gray #6C757D ΔE 0.039
- Stormy Blue #507B9C ΔE 0.040
- Cerulean #457B9D ΔE 0.041
- Slate #516572 ΔE 0.042
- Grey Blue #647D8E ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.048
Use #517284 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.