#516E7E
Closest named color: Metallic Blue (#4F738E). oklch(52.2% 0.042 232.8), rgb(81, 110, 126).
Aa
White text reads best on this color (5.41:1).
About this color
#516E7E is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.042 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.025 away. White text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.88:1 |
| White text | 5.41:1 |
Values
| HEX | #516E7E |
| RGB | rgb(81, 110, 126) |
| HSL | hsl(201, 22%, 41%) |
| OKLCH | oklch(52.2% 0.042 232.8) |
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 #516E7E | 5.41:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #516E7E | 3.88:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #516E7E text on white | 5.41:1 | AA | Lc 76.9 | Fine for body text |
| #516E7E text on black | 3.88:1 | AA large text | Lc -24.8 | 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 700.
-
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
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B4C3CC
oklch(80.8% 0.021 233.9)
-
Step 400
400
#8DA5B2
oklch(70.8% 0.033 231.5)
-
Step 500
500
#718E9F
oklch(63.1% 0.042 234)
-
Step 600
600
#59788A
oklch(55.6% 0.045 234.1)
-
Step 700
700 (this color)
#516E7E
oklch(52.2% 0.042 232.8)
-
Step 800
800
#3C535F
oklch(42.8% 0.034 231.3)
-
Step 900
900
#33444E
oklch(37.6% 0.028 234.3)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#516E7E 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) | #666D7F | 0.029 |
| Deuteranopia (no green cones) | #60687E | 0.025 |
| Tritanopia (no blue cones) | #427273 | 0.030 |
| Achromatopsia (no color) | #6A6A6A | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516E7E
#516E7E
oklch(52.2% 0.042 232.8)
- #7D6353
#7D6353
oklch(52.1% 0.042 53.2)
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 #516E7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.025
- Slate #516572 ΔE 0.029
- Dim Gray #696969 ΔE 0.042
- Battleship Gray #6C757D ΔE 0.044
- Dull Blue #49759C ΔE 0.046
- Stormy Blue #507B9C ΔE 0.052
- Cerulean #457B9D ΔE 0.053
- Denim #3B638C ΔE 0.053
Use #516E7E 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.