#507B79
Closest named color: Battleship Gray (#6C757D). oklch(55.1% 0.048 192.1), rgb(80, 123, 121).
Aa
White text reads best on this color (4.71:1).
About this color
#507B79 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.048 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Battleship Gray (#6C757D), ΔE 0.040 away. White text reads best on it, at 4.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Battleship Gray (#6C757D) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #507B79 |
| RGB | rgb(80, 123, 121) |
| HSL | hsl(177, 21%, 40%) |
| OKLCH | oklch(55.1% 0.048 192.1) |
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 #507B79 | 4.71:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #507B79 | 4.45:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #507B79 text on white | 4.71:1 | AA | Lc 72.7 | Content text, not long reading |
| #507B79 text on black | 4.45:1 | AA large text | Lc -29.0 | 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 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
#B2C5C4
oklch(80.9% 0.021 192.9)
-
Step 400
400
#89A8A6
oklch(70.8% 0.034 191.6)
-
Step 500
500
#6A9290
oklch(63% 0.044 192.2)
-
Step 600
600 (this color)
#507B79
oklch(55.1% 0.048 192.1)
-
Step 700
700
#426967
oklch(49.1% 0.044 191.7)
-
Step 800
800
#375654
oklch(42.8% 0.037 190.7)
-
Step 900
900
#304745
oklch(37.8% 0.029 189.2)
-
Step 950
950
#1C2929
oklch(26.9% 0.018 196.1)
#507B79 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) | #767779 | 0.050 |
| Deuteranopia (no green cones) | #6E7179 | 0.047 |
| Tritanopia (no blue cones) | #407D7A | 0.016 |
| Achromatopsia (no color) | #737373 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #507B79
#507B79
oklch(55.1% 0.048 192.1)
- #8B676A
#8B676A
oklch(55.1% 0.047 13.1)
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 #507B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Battleship Gray #6C757D ΔE 0.040
- Battleship Grey #6B7C85 ΔE 0.041
- Grey Blue #647D8E ΔE 0.043
- Teal #008080 ΔE 0.046
- Metallic Blue #4F738E ΔE 0.047
- Bluegreen #017A79 ΔE 0.050
- Deep Aqua #08787F ΔE 0.050
- Steel Grey #6F828A ΔE 0.052
Use #507B79 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.