#50737B
Closest named color: Metallic Blue (#4F738E). oklch(53.2% 0.042 213.5), rgb(80, 115, 123).
Aa
White text reads best on this color (5.14:1).
About this color
#50737B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.042 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.031 away. White text reads best on it, at 5.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.07:1 |
| White text | 5.14:1 |
Values
| HEX | #50737B |
| RGB | rgb(80, 115, 123) |
| HSL | hsl(191, 21%, 40%) |
| OKLCH | oklch(53.2% 0.042 213.5) |
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 #50737B | 5.14:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #50737B | 4.07:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #50737B text on white | 5.14:1 | AA | Lc 75.4 | Fine for body text |
| #50737B text on black | 4.07:1 | AA large text | Lc -26.3 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B4C4C8
oklch(80.9% 0.018 214.4)
-
Step 400
400
#8CA6AC
oklch(70.7% 0.03 213.2)
-
Step 500
500
#6F9098
oklch(63.1% 0.039 214.2)
-
Step 600
600 (this color)
#50737B
oklch(53.2% 0.042 213.5)
-
Step 700
700
#47676E
oklch(49.2% 0.039 212.8)
-
Step 800
800
#3A545A
oklch(42.7% 0.033 213.6)
-
Step 900
900
#32454A
oklch(37.6% 0.025 215.7)
-
Step 950
950
#1E292B
oklch(27.1% 0.016 209.9)
#50737B 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) | #6D717B | 0.039 |
| Deuteranopia (no green cones) | #666B7B | 0.036 |
| Tritanopia (no blue cones) | #417675 | 0.023 |
| Achromatopsia (no color) | #6D6D6D | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #50737B
#50737B
oklch(53.2% 0.042 213.5)
- #83645D
#83645D
oklch(53.2% 0.042 33)
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 #50737B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.031
- Battleship Gray #6C757D ΔE 0.039
- Slate #516572 ΔE 0.041
- Dim Gray #696969 ΔE 0.043
- Grey Blue #647D8E ΔE 0.048
- Battleship Grey #6B7C85 ΔE 0.048
- Deep Aqua #08787F ΔE 0.048
- Dull Blue #49759C ΔE 0.051
Use #50737B 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.