#516F7A
Closest named color: Slate (#516572). oklch(52.3% 0.039 222.5), rgb(81, 111, 122).
Aa
White text reads best on this color (5.37:1).
About this color
#516F7A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.039 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.029 away. White text reads best on it, at 5.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #516F7A |
| RGB | rgb(81, 111, 122) |
| HSL | hsl(196, 20%, 40%) |
| OKLCH | oklch(52.3% 0.039 222.5) |
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 #516F7A | 5.37:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #516F7A | 3.90:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #516F7A text on white | 5.37:1 | AA | Lc 76.8 | Fine for body text |
| #516F7A text on black | 3.90:1 | AA large text | Lc -25.0 | 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
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDE
oklch(88.5% 0.011 219.6)
-
Step 300
300
#B4C4C9
oklch(81% 0.019 218.4)
-
Step 400
400
#8DA5AE
oklch(70.6% 0.03 222.5)
-
Step 500
500
#708F9A
oklch(63% 0.039 221.6)
-
Step 600
600
#587985
oklch(55.5% 0.042 222.4)
-
Step 700
700 (this color)
#516F7A
oklch(52.3% 0.039 222.5)
-
Step 800
800
#3C535C
oklch(42.7% 0.032 224)
-
Step 900
900
#33454B
oklch(37.7% 0.025 220.3)
-
Step 950
950
#1E282C
oklch(26.9% 0.016 224.2)
#516F7A 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) | #696D7B | 0.033 |
| Deuteranopia (no green cones) | #62687A | 0.029 |
| Tritanopia (no blue cones) | #437372 | 0.026 |
| Achromatopsia (no color) | #6A6A6A | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #516F7A
#516F7A
oklch(52.3% 0.039 222.5)
- #7E6358
#7E6358
oklch(52.3% 0.039 43.3)
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 #516F7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.029
- Metallic Blue #4F738E ΔE 0.031
- Dim Gray #696969 ΔE 0.039
- Battleship Gray #6C757D ΔE 0.043
- Dull Blue #49759C ΔE 0.052
- Deep Aqua #08787F ΔE 0.053
- Grey Blue #647D8E ΔE 0.055
- Battleship Grey #6B7C85 ΔE 0.055
Use #516F7A 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.