#507C77
Closest named color: Battleship Grey (#6B7C85). oklch(55.3% 0.049 186.8), rgb(80, 124, 119).
Aa
White text reads best on this color (4.67:1).
About this color
#507C77 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.049 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Grey (#6B7C85), ΔE 0.043 away. White text reads best on it, at 4.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Battleship Grey (#6B7C85) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #507C77 |
| RGB | rgb(80, 124, 119) |
| HSL | hsl(173, 22%, 40%) |
| OKLCH | oklch(55.3% 0.049 186.8) |
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 #507C77 | 4.67:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #507C77 | 4.49:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #507C77 text on white | 4.67:1 | AA | Lc 72.4 | Content text, not long reading |
| #507C77 text on black | 4.49:1 | AA large text | Lc -29.3 | 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
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D1DCDA
oklch(88.6% 0.012 184)
-
Step 300
300
#B1C6C3
oklch(81% 0.023 186.4)
-
Step 400
400
#88A8A4
oklch(70.6% 0.036 187.1)
-
Step 500
500
#6A938E
oklch(63.2% 0.046 186.7)
-
Step 600
600 (this color)
#507C77
oklch(55.3% 0.049 186.8)
-
Step 700
700
#416965
oklch(49% 0.046 187.8)
-
Step 800
800
#365652
oklch(42.7% 0.038 186)
-
Step 900
900
#2F4744
oklch(37.7% 0.03 186.3)
-
Step 950
950
#1C2A28
oklch(27.2% 0.019 185.2)
#507C77 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) | #787777 | 0.053 |
| Deuteranopia (no green cones) | #707278 | 0.049 |
| Tritanopia (no blue cones) | #417E7A | 0.015 |
| Achromatopsia (no color) | #747474 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507C77
#507C77
oklch(55.3% 0.049 186.8)
- #8C676D
#8C676D
oklch(55.3% 0.048 8)
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 #507C77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Grey #6B7C85 ΔE 0.043
- Battleship Gray #6C757D ΔE 0.043
- Teal #008080 ΔE 0.045
- Grey Blue #647D8E ΔE 0.046
- Bluegreen #017A79 ΔE 0.050
- Deep Aqua #08787F ΔE 0.052
- Metallic Blue #4F738E ΔE 0.052
- Steel Grey #6F828A ΔE 0.053
Use #507C77 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.