#507B73
Closest named color: Battleship Gray (#6C757D). oklch(54.9% 0.049 181.4), rgb(80, 123, 115).
Aa
White text reads best on this color (4.74:1).
About this color
#507B73 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.049 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.045 away. White text reads best on it, at 4.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #507B73 |
| RGB | rgb(80, 123, 115) |
| HSL | hsl(169, 21%, 40%) |
| OKLCH | oklch(54.9% 0.049 181.4) |
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 #507B73 | 4.74:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #507B73 | 4.42:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #507B73 text on white | 4.74:1 | AA | Lc 72.9 | Content text, not long reading |
| #507B73 text on black | 4.42:1 | AA large text | Lc -28.8 | 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 600.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D1DCD9
oklch(88.5% 0.013 178)
-
Step 300
300
#B2C6C1
oklch(81% 0.023 179)
-
Step 400
400
#89A8A2
oklch(70.6% 0.035 182.2)
-
Step 500
500
#6B938B
oklch(63.1% 0.046 181)
-
Step 600
600 (this color)
#507B73
oklch(54.9% 0.049 181.4)
-
Step 700
700
#426962
oklch(48.9% 0.046 181.8)
-
Step 800
800
#375650
oklch(42.7% 0.038 180.9)
-
Step 900
900
#304742
oklch(37.7% 0.03 179.6)
-
Step 950
950
#1C2A27
oklch(27.1% 0.02 180)
#507B73 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) | #777673 | 0.052 |
| Deuteranopia (no green cones) | #707174 | 0.050 |
| Tritanopia (no blue cones) | #427D78 | 0.015 |
| Achromatopsia (no color) | #737373 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507B73
#507B73
oklch(54.9% 0.049 181.4)
- #8A656F
#8A656F
oklch(54.8% 0.05 1)
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 #507B73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.045
- Teal #008080 ΔE 0.046
- Battleship Grey #6B7C85 ΔE 0.047
- Bluegreen #017A79 ΔE 0.049
- Grey Blue #647D8E ΔE 0.051
- Deep Aqua #08787F ΔE 0.052
- Metallic Blue #4F738E ΔE 0.056
- Dim Gray #696969 ΔE 0.057
Use #507B73 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.