#507A77
Closest named color: Battleship Gray (#6C757D). oklch(54.8% 0.047 190.2), rgb(80, 122, 119).
Aa
White text reads best on this color (4.78:1).
About this color
#507A77 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.047 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.041 away. White text reads best on it, at 4.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.39:1 |
| White text | 4.78:1 |
Values
| HEX | #507A77 |
| RGB | rgb(80, 122, 119) |
| HSL | hsl(176, 21%, 40%) |
| OKLCH | oklch(54.8% 0.047 190.2) |
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 #507A77 | 4.78:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #507A77 | 4.39:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #507A77 text on white | 4.78:1 | AA | Lc 73.1 | Content text, not long reading |
| #507A77 text on black | 4.39:1 | AA large text | Lc -28.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D1DCDB
oklch(88.6% 0.012 190.4)
-
Step 300
300
#B2C5C3
oklch(80.8% 0.021 189.1)
-
Step 400
400
#89A8A5
oklch(70.7% 0.034 189.2)
-
Step 500
500
#6B928F
oklch(63% 0.043 190.2)
-
Step 600
600 (this color)
#507A77
oklch(54.8% 0.047 190.2)
-
Step 700
700
#436966
oklch(49.1% 0.043 189.6)
-
Step 800
800
#375653
oklch(42.8% 0.037 188.2)
-
Step 900
900
#304745
oklch(37.8% 0.029 189.2)
-
Step 950
950
#1C2928
oklch(26.9% 0.018 190.2)
#507A77 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) | #757677 | 0.049 |
| Deuteranopia (no green cones) | #6E7077 | 0.047 |
| Tritanopia (no blue cones) | #417C79 | 0.015 |
| Achromatopsia (no color) | #727272 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507A77
#507A77
oklch(54.8% 0.047 190.2)
- #8A666A
#8A666A
oklch(54.8% 0.047 11.3)
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 #507A77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.041
- Battleship Grey #6B7C85 ΔE 0.043
- Grey Blue #647D8E ΔE 0.046
- Teal #008080 ΔE 0.046
- Metallic Blue #4F738E ΔE 0.048
- Bluegreen #017A79 ΔE 0.049
- Deep Aqua #08787F ΔE 0.050
- Dim Gray #696969 ΔE 0.054
Use #507A77 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.